Bonanza is an American Western television series that ran on NBC from September 12, 1959, to January 16, 1973. Lasting 14 seasons and 431 episodes, Bonanza is NBC's longest-running Western, the second-longest-running Western series on U.S. network television, and one of the longest-running, live-action American series. The show continues to air in syndication. The show is set in the 1860s and centers on the wealthy Cartwright family, who live in the vicinity of Virginia City, Nevada, bordering Lake Tahoe. The series initially starred Lorne Greene, Pernell Roberts, Dan Blocker and Michael Landon and later featured Guy Williams, David Canary, Mitch Vogel and Tim Matheson. The show is known for presenting pressing moral dilemmas.
Lorne Hyman Greene was a Canadian actor, musician, singer and radio personality. His notable television roles include Ben Cartwright on the Western Bonanza and Commander Adama in the original science-fiction television series Battlestar Galactica and Galactica 1980. He also worked on the Canadian television nature documentary series Lorne Greene's New Wilderness and in television commercials.
The Ponderosa Ranch was a theme park based on the television western Bonanza, which housed the land, timber and livestock-rich Cartwright family. The amusement park operated in Incline Village, Nevada, near Lake Tahoe, from 1968 until 2004. Portions of the last five seasons of the TV series and three television films were also filmed at that location.
The Ponderosa is a television series developed by Bonanza creator David Dortort for PAX TV that ran for the 2001–2002 television season.
Bonanza: The Next Generation is a 1988 American Western television film and a sequel to the 1959–1973 television series Bonanza starring John Ireland, Robert Fuller, Barbara Anderson, Michael Landon Jr., Brian A. Smith and John Amos.
The first season of the American Western television series Bonanza premiered on NBC on September 12, 1959, with the final episode airing April 30, 1960. The series was developed and produced by David Dortort, and season one starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon. The season consisted of 32 episodes of the series's total 431 hour-long episodes, the entirety of which was produced in color. It aired on Saturdays from 7:30 pm–8:30 pm on NBC and placed at number 45 in the Nielsen ratings.
The second season of the American Western television series Bonanza premiered on NBC on September 10, 1960, with the final episode airing June 3, 1961. The series was developed and produced by David Dortort, and season two starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of the series's total 431 hour-long episodes, the entirety of which was produced in color. It aired on Saturdays from 7:30 pm–8:30 pm on NBC and placed at number 17 in the Nielsen ratings.
The third season of the American Western television series Bonanza premiered on NBC on September 24, 1961, with the final episode airing May 20, 1962. The series was developed and produced by David Dortort, and season three starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. At the start of the third season, the show was moved to Sundays at 9:00 p.m. In that time slot, the ratings soared and the series become second only to Wagon Train as the most popular program on American prime time television.
The fourth season of the American Western television series Bonanza premiered on NBC on September 23, 1962, with the final episode airing May 26, 1963. The series was developed and produced by David Dortort, and season four starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season four was aired on Sundays at 9:00 p.m. It ranked #4 in the Nielsen ratings, the highest rated Western for the 1962–1963 season.
The fifth season of the American Western television series Bonanza premiered on NBC on September 22, 1963, with the final episode airing May 24, 1964. The series was developed and produced by David Dortort, and season five starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season five was aired on Sundays at 9:00 p.m. It ranked #2 in the Nielsen ratings, the highest rated Western for the 1963-1964 season.
The sixth season of the American Western television series Bonanza premiered on NBC on September 20, 1964, with the final episode airing May 23, 1965. The series was developed and produced by David Dortort, and season six starred Lorne Greene, Pernell Roberts, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season six was aired on Sundays at 9:00 p.m. It moved up to capture the #1 spot in the Nielsen ratings for the 1964-1965 season, a position it would hold for three straight seasons.
The seventh season of the American Western television series Bonanza premiered on NBC on September 12, 1965, with the final episode airing May 15, 1966. The series was developed and produced by David Dortort. Season seven starred Lorne Greene, Dan Blocker, and Michael Landon. It was the first season without Pernell Roberts. The season consisted of 33 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season seven was aired on Sundays at 9:00 p.m. It ranked #1 in the Nielsen ratings for the 1965-1966 season, the second of three straight seasons in the top spot.
The eighth season of the American Western television series Bonanza premiered on NBC on September 11, 1966, with the final episode airing May 14, 1967. The series was developed and produced by David Dortort. Season eight starred Lorne Greene, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season eight was aired on Sundays at 9:00 p.m. It was the third straight season the show held the #1 position in the Nielsen ratings.
The ninth season of the American Western television series Bonanza premiered on NBC on September 17, 1967, with the final episode airing July 28, 1968. The series was developed and produced by David Dortort. Season nine starred Lorne Greene, Dan Blocker, and Michael Landon. The season consisted of 34 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season nine was aired on Sundays at 9:00 p.m. After three straight seasons at number one, it slipped to #6 in the Nielsen ratings.
The tenth season of the American Western television series Bonanza premiered on NBC on September 15, 1968, with the final episode airing May 11, 1969. The series was developed and produced by David Dortort. Season ten starred Lorne Greene, Dan Blocker, and Michael Landon. The season consisted of 30 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season ten was aired on Sundays at 9:00 p.m. It was #2 in the Nielsen ratings, the highest rated Western for the season.
The eleventh season of the American Western television series Bonanza premiered on NBC on September 14, 1969, with the final episode airing April 19, 1970. The series was developed and produced by David Dortort. Season eleven starred Lorne Greene, Dan Blocker, and Michael Landon. The season consisted of 28 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season eleven was aired on Sundays at 9:00 p.m. It was #3 in the Nielsen ratings, behind #2 Gunsmoke.
The thirteenth season of the American Western television series Bonanza premiered on NBC on September 19, 1971, with the final episode airing April 2, 1972. The series was developed and produced by David Dortort. Season thirteen starred Lorne Greene, Dan Blocker, and Michael Landon. The season consisted of 26 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season thirteen was aired on Sundays at 9:00 p.m. It fell to #20 in the Nielsen ratings.
The fourteenth season of the American Western television series Bonanza premiered on NBC on September 12, 1972, with the final episode airing January 16, 1973. This was the final season for the series. The series was developed and produced by David Dortort. Season fourteen starred Lorne Greene and Michael Landon, the first season following the death of Dan Blocker. The season consisted of 16 episodes of a series total 431 hour-long episodes, the entirety of which was produced in color. Season fourteen moved to a new timeslot of Tuesdays from 8:00 pm–9:00 pm on NBC. The final season fell out of the top 30 in the Nielsen ratings.
