A smart TV, also known as a connected TV (CTV), is a traditional television set with integrated Internet and interactive Web 2.0 features that allow users to stream music and videos, browse the internet, and view photos. Smart TVs are a technological convergence of computers, televisions, and digital media players. Besides the traditional functions of television sets provided through traditional broadcasting media, these devices can provide access to over-the-top media services such as streaming television and internet radio, along with home networking access. [1] [2] [3]
Smart TV should not be confused with Internet TV, IPTV, or streaming television. Internet TV refers to receiving television content over the Internet instead of traditional systems such as terrestrial, cable, and satellite, regardless of how the Internet is delivered. IPTV is one of the Internet television technology standards for use by television broadcasters. Streaming television is a term used for programs created by many producers for showing on Internet TV.
In smart TVs, the operating system is preloaded into the television set's firmware, which provides access to apps and other digital content. In contrast, traditional televisions primarily act as displays and are limited to vendor-specific customization. The software applications can be preloaded into the device or updated or installed on demand via an application store or marketplace, in a manner similar to how applications are integrated into modern smartphones. [4] [5] [6] [7] [8]
The technology that enables smart TVs is also incorporated into external devices such as set-top boxes and some Blu-ray players, game consoles, digital media players, hotel television systems, smartphones, and other network-connected interactive devices that utilize television-type display outputs. [9] [10] These devices allow viewers to find and play videos, movies, TV shows, photos, and other content from the Web, cable or satellite TV channels, or a local storage device.
A Smart TV device is either a television set with integrated Internet capabilities or a set-top box for television that offers more advanced computing ability and connectivity than a contemporary basic television set. A Smart TVs is an information appliance and may be thought of as the computer system of a mobile device integrated with a television set unit. A Smart TV runs a complete operating system or mobile operating system that may provide a platform for application developers. Thus, a Smart TV often allows the user to install and run more advanced applications or plugins/addons based on its specific platform. [1] [11] [12]
A Smart TV platform has a public software development kit (SDK) or native development kit (NDK) with which third-party developers can develop applications for it, and an app store so end-users can install and uninstall apps. The public SDK enables third-party application developers to write applications once and see them run successfully on any device that supports the Smart TV platform architecture it was written for, regardless of the hardware manufacturer.
Smart TVs deliver content (such as photos, movies and music) from other computers or network attached storage devices on a network using either a Digital Living Network Alliance (DLNA) / Universal Plug and Play (UPnP) media server or similar service program like Windows Media Player or Network-attached storage (NAS), or via iTunes. It also provides access to Internet-based services including traditional broadcast TV channels, catch-up services, video-on-demand (VOD), electronic program guide, interactive advertising, personalisation, voting, games, social networking, and other multimedia applications. [13] Smart TV enables access to movies, shows, video games, apps and more. Some of those apps include Netflix, Hulu, Spotify, YouTube, and Amazon. [14]
In the early 1980s, "intelligent" television receivers were introduced in Japan. The addition of an LSI chip with memory and a character generator to a television receiver enabled Japanese viewers to receive a mix of programming and information transmitted over spare lines of the broadcast television signal. [15] A patent was filed in 1994 [16] (and extended the following year) [17] for an "intelligent" television system, linked with data processing systems, by means of a digital or analog network. Apart from being linked to data networks, one key point is its ability to automatically download necessary software routines, according to a user's demand, and process their needs.
However, descriptions of the elements of a smart television can be found in public discourse from the beginning of the 1980s, if not earlier, with the introduction of videotex services, particularly teletext information for reception by television sets, leading commentators to consider that televisions and accessories would evolve to encompass a range of related activities. In the words of one commentator: "In the long run, this machine is likely to develop into a multi-purpose receiver, for electronic mail, dealing with the bank, calculations, remote information - and 'Not the nine o'clock news' or 'Casablanca' on video." [18]
The mass acceptance of digital television in the mid-late 2000s and early 2010s greatly improved Smart TVs. Major TV manufacturers have announced production of Smart TVs only for their middle-end to high-end TVs in 2015. [19] [20] [21] Smart TVs became the dominant form of television during the late 2010s. At the beginning of 2016, Nielsen reported that 29 percent of those with incomes over $75,000 a year had a Smart TV. [22]
Smart TV devices also provide access to user-generated content (either stored on an external hard drive or in cloud storage) and to interactive services and Internet applications, such as YouTube, many using HTTP Live Streaming (also known as HLS) adaptive streaming. [23] Smart TV devices facilitate the curation of traditional content by combining information from the Internet with content from TV providers. Services offer users a means to track and receive reminders about shows [24] or sporting events, [25] as well as the ability to change channels for immediate viewing. Some devices feature additional interactive organic user interface / natural user interface technologies for navigation controls and other human interaction with a Smart TV, with such as second screen companion devices, [26] [27] spatial gestures input like with Xbox Kinect, [28] [29] and even for speech recognition for natural language user interface. [30] Smart TV develops new features to satisfy consumers and companies, such as new payment processes. LG and PaymentWall have collaborated to allow consumers to access purchased apps, movies, games, and more using a remote control, laptop, tablet, or smartphone. This is intended for an easier and more convenient way for checkout.
Smart TV technology and software is still evolving, with both proprietary and open source software frameworks already available. These can run applications (sometimes available via an 'app store' digital distribution platform), play over-the-top media services and interactive on-demand media, personalized communications, and have social networking features. [31] [32] [33] [34]
Android TV, Boxee, Google TV, Horizon TV, Inview, Kodi Entertainment Center, Mediaroom, MeeGo, OpenTV, Plex, RDK (Reference Development Kit), Roku, Smart TV Alliance, ToFu Media Platform, Ubuntu TV, Vewd, and Yahoo! Smart TV are framework platforms managed by individual companies. HbbTV, provided by the Hybrid Broadcast Broadband TV association, CE-HTML, part of Web4CE, OIPF, part of HbbTV, and Tru2way are framework platforms managed by technology businesses. Current Smart TV platforms used by vendors are Amazon, Apple, Google, Haier, Hisense, Hitachi, Insignia, LG, Microsoft, Netgear, Panasonic, Philips, Samsung, Sharp, Sony, TCL, TiVO, Toshiba, Sling Media, and Western Digital. Sony, Panasonic, Samsung, LG, and Roku TV are some platforms ranked under the best Smart TV platforms. [35]
According to a report from research group NPD In-Stat, in 2012 only about 12 million U.S. households had their Web-capable TVs connected to the Internet, although an estimated 25 million households owned a set with the built-in network capability. In-Stat predicted that by 2016, 100 million homes in North America and western Europe would be using television sets blending traditional programming with internet content. [36] By the end of 2019, the number of installed Connect TVs reached 1.26 billion worldwide. [37]
The number of households using over-the-top television services has rapidly increased over the years. In 2015, 52% of U.S. households subscribed to Netflix, Amazon Prime, or Hulu Plus; 43% of pay-TV subscribers also used Netflix, and 43% of adults used some streaming video on demand service at least monthly. Additionally, 19% of Netflix subscribers shared their subscription with people outside of their households. Ten percent of adults at the time showed interest in HBO Now. [38]
Some Smart TV platforms come prepackaged or can be optionally extended, with social networking technology capabilities. The addition of social networking synchronization to Smart TV and HTPC platforms may provide an interaction both with on-screen content and with other viewers than is currently available to most televisions, while simultaneously providing a much more cinematic experience of the content than is currently available with most computers. [39]
Some Smart TV platforms also support interactive advertising (companion ads), addressable advertising with local advertising insertion and targeted advertising, [40] and other advanced advertising features such as ad telescoping [41] using VOD and DVR, enhanced TV for consumer call-to-action, and audience measurement solutions for ad campaign effectiveness. [42] [43] The marketing and trading possibilities offered by Smart TVs are sometimes summarized by the term t-commerce. Taken together, this bidirectional data flow means Smart TVs can be and are used for clandestine observation of the owners. Even in sets that are not configured off-the-shelf to do so, default security measures are often weak and will allow hackers to easily break into the TV. [44]
2019 research, "Watching You Watch: The Tracking Ecosystem of Over-the-Top TV Streaming Devices", conducted at Princeton and University of Chicago, demonstrated that a majority of streaming devices will covertly collect and transmit personal user data, including captured screen images, to a wide network of advertising and analytics companies, raising privacy concerns. [45]
Digital marketing research firm eMarketer reported a 38 percent surge –to close to $7 billion, a 10 percent television advertising market share –in advertising on connected TV like Hulu and Roku, to be underway in 2019, with market indicators that the figure would surpass $10 billion in 2021. [46] [47]
There is evidence that a Smart TV is vulnerable to attacks. Some serious security bugs have been discovered, and some successful attempts to run malicious code to get unauthorized access were documented on video. There is evidence that it is possible to gain root access to the device, install malicious software, access and modify configuration information for a remote control, remotely access and modify files on TV and attached USB drives, access camera and microphone. [48]
There have also been concerns that hackers may be able to remotely turn on the microphone or webcam on a smart TV, being able to eavesdrop on private conversations. A common loop antenna may be set for a bidirectional transmission channel, capable of uploading data rather than only receiving. Since 2012, security researchers discovered a similar vulnerability present in more series of Smart TVs, which allows hackers to get an external root access on the device. [49]
Anticipating growing demand for an antivirus for a Smart TV, some security software companies are already working with partners in the digital TV field on the solution. It seems like there is only one antivirus for Smart TVs available: "Neptune", a cloud-based antimalware system developed by Ocean Blue Software in partnership with Sophos. However, antivirus company Avira has joined forces with digital TV testing company Labwise to work on software to protect against potential attacks. [50] The privacy policy for Samsung's Smart TVs has been called Orwellian (a reference to George Orwell and the dystopian world of constant surveillance he depicted in Nineteen Eighty-Four ), and compared to Telescreens because of eavesdropping concerns. [51] [52]
Hackers have misused Smart TV's abilities such as operating source codes for applications and its unsecured connection to the Internet. Passwords, IP address data, and credit card information can be accessed by hackers and even companies for advertisement. A company caught in the act is Vizio.[ citation needed ] The confidential documents, codenamed Vault 7 and dated from 2013 to 2016, include details on CIA's software capabilities, such as the ability to compromise Smart TVs. [53]
Internet websites can block Smart TV access to content at will or tailor the content that will be received by each platform. [54] Google TV-enabled devices were blocked by NBC, ABC, CBS, and Hulu from accessing their Web content since the launch of Google TV in October 2010. Google TV devices were also blocked from accessing any programs offered by Viacom's subsidiaries. [55]
In 2017, high-end Samsung Smart TVs stopped working for at least seven days after a software update. [56] Application providers are rarely upgrading Smart TV apps to the latest version; for example, Netflix does not support older TV versions with new Netflix upgrades. [57]
Streaming television is the digital distribution of television content, such as television series and films, streamed over the Internet. Standing in contrast to dedicated terrestrial television delivered by over-the-air aerial systems, cable television, and/or satellite television systems, streaming television is provided as over-the-top media (OTT), or as Internet Protocol television (IPTV). In the United States, streaming television has become "the dominant form of TV viewing."
Roku, Inc. is an American streaming technology company. Founded in 2002 by Anthony Wood, it produces streaming players and smart TVs, licenses its technology to other manufacturers, and distributes streaming services. Roku leads U.S. streaming TV distribution and advertising, reaching 120 million viewers as of 2024. Outside the U.S., the company operates in Australia, Canada, France, Germany, the U.K., and Latin American countries including Argentina, Brazil, Chile, Colombia, Mexico and Peru.
My5 is the brand name of video-on-demand services offered by Channel 5 in the United Kingdom. The service went live on 26 June 2008. It is owned by Paramount Global and operated by their Paramount Networks UK & Australia division.
A digital media player is a type of consumer electronics device designed for the storage, playback, or viewing of digital media content. They are typically designed to be integrated into a home cinema configuration, and attached to a television or AV receiver or both.
Xumo, LLC is an American internet television and consumer electronics company. It is a joint venture of Charter Communications and Comcast that operates the free ad-supported streaming television (FAST) and advertising video on demand (AVOD) service Xumo Play, and develops digital media players and smart TVs. The Xumo Play platform's service operations are based in the Orange County suburb of Irvine, California. As of October 2020, Xumo Play has 24 million monthly active users.
ABC iview is a video on demand and catch-up TV service run by the Australian Broadcasting Corporation. Currently iview video content can only be viewed by users in Australia. As of 2016, ABC iview attracts around 50 million plays monthly and accounts for around half of the total time streamed by Australian TV video services.
ITVX is a British over-the-top and ad-supported streaming service operated by ITV plc. The service offers original content from the broadcaster, livestreams of the ITV television channels, FAST channels, and exclusive and licensed programming.
Hybrid Broadcast Broadband TV (HbbTV) is both an industry standard and promotional initiative for hybrid digital TV to harmonise the broadcast, Internet Protocol Television (IPTV), and broadband delivery of entertainment to the end consumer through connected TVs and set-top boxes. The HbbTV Association, comprising digital broadcasting and Internet industry companies, has established a standard for the delivery of broadcast TV and broadband TV to the home, through a single user interface, creating an open platform as an alternative to proprietary technologies. Products and services using the HbbTV standard can operate over different broadcasting technologies, such as satellite, cable, or terrestrial networks.
HD+ is a premium high-definition (HD) satellite and streamed TV service for German users, owned by HD PLUS GmbH, a subsidiary of SES based in Unterföhring near Munich, Germany.
Google TV was a smart TV operating system from Google co-developed by Intel, Sony and Logitech. It launched in October 2010 with official devices initially made by Sony and Logitech. Google TV integrated the Android 3.0/3.2 operating system and the Google Chrome web browser to create an interactive television overlay on top of existing online video sites to add a 10-foot user interface, for a smart TV experience.
Over-the-top media service refers to a media service offered directly to viewers via the public Internet, rather than through an over-the-air, cable, or satellite-based provider. The term is synonymous with "streaming platform", such as Netflix and Amazon Prime Video which provide access to subscription-based film and television content (SVoD).
Samba TV is a television technology company that offers real-time insights and audience analytics. It was founded in 2008 by early employees of BitTorrent, including Samba TV's current chief executive officer, Ashwin Navin. The company develops software for televisions, set-top boxes, smart phones and tablets to enable interactive television through personalization. Through its portfolio of applications and TV platform technologies, Samba TV is built directly into the TV or set-top box and will recognize onscreen content—live or time-shifted—and make relevant information available to users at their request.
Android TV is a smart TV operating system based on Android and developed by Google. It is available on television sets, soundbars, set-top boxes and digital media players. A successor to Google TV, it features a user interface designed around content discovery and voice search, content aggregation from various media apps and services, and integration with other recent Google technologies such as Assistant, Cast, and Knowledge Graph.
Google TV is a digital distribution service for movies and television series developed by Google. It was announced in September 2020, offering search and discovery of video titles across multiple streaming services, including rental or purchase options, alongside watchlist features for accessing titles from eligible devices and platforms. The buy, rent, or preorder options were shared with the predecessor Google Play Movies & TV, which has since moved to the newer service.
Steam Link is a hardware and software product developed by Valve Corporation for streaming Steam content from a personal computer or Steam Machine wirelessly to a mobile device or other monitor. Steam Link was originally released as a hardware device alongside the debut of Steam Machines in November 2015. Valve discontinued the Steam Link hardware device in November 2018, in favor of supporting its software-based Steam Link application for mobile devices and smart televisions, as well as providing Steam Link as a software package for the Raspberry Pi microcomputer.
Giraffic is a Tel Aviv-based company that had developed "Adaptive Video Acceleration” (AVA) software to improve the performance of streaming video. It sold primarily to OTT Video Apps Providers and to Consumer Electronics Device Manufacturers, such as LG, ZTE and Samsung.
Automatic content recognition (ACR) is a technology used to identify content played on a media device or presented within a media file. Devices with ACR can allow for the collection of content consumption information automatically at the screen or speaker level itself, without any user-based input or search efforts. This information may be collected for purposes such as personalized advertising, content recommendations, or sale to customer data aggregators.
The Apple TV app is a line of media player software programs developed by Apple Inc. for viewing television shows and films delivered by Apple to consumer electronic devices. It can stream content from the iTunes Store, the Apple TV Channels a la carte video on demand service, and the Apple TV+ original content subscription service. On iPhone, iPad, iPod Touch, Vision Pro, and Apple TV devices it can also index and access content from linked apps of other video on demand services.
NetCast is a Smart TV platform based on Linux, built by LG Electronics that was preinstalled on their smart TVs between 2009 and 2014. LG has signed partnerships with various companies to provide services on the TV. It includes YouTube, AccuWeather, Orange Mobile, Maxdome, CinemaNow, Netflix and more apps that can be downloaded from the internet. LG has combined local and global services to provide the most relevant content. In 2011, LG added the LG Apps Store to the platform. It allowed users to install applications which were not previously included on their TVs. The platform was succeeded by WebOS.
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