|Duration||September 21 – December 21, 1975|
|Start date||December 27, 1975|
|AFC Champions||Pittsburgh Steelers|
|NFC Champions||Dallas Cowboys|
|Super Bowl X|
|Date||January 18, 1976|
|Site||Orange Bowl, Miami, Florida|
|Date||January 26, 1976|
|Site||Louisiana Superdome, New Orleans|
The 1975 NFL season was the 56th regular season of the National Football League.
Instead of a traditional Thanksgiving Day game hosted by the Dallas Cowboys, the league scheduled a Buffalo Bills at St. Louis Cardinals contest. This was the first season since 1966 that the Cowboys did not play on that holiday.
The playoff format was changed so that the division champions with the best regular season records were made the home teams for the divisional round, with the division champion advancing to the conference championship game with the best record hosting the title game. Previously, game sites rotated by division. The caveat stipulating that a wild card team could not face its own division champion in the divisional round was kept in force.
The season ended with Super Bowl X when the Pittsburgh Steelers repeated as champions by defeating the Dallas Cowboys 21–17 at the Orange Bowl in Miami.
The 1975 NFL Draft was held from January 28 to 29, 1975 at New York City's Hilton at Rockefeller Center. With the first pick, the Atlanta Falcons selected quarterback Steve Bartkowski from the University of California.
Jerry Seeman, who would go on to serve as referee for Super Bowl XXIII and Super Bowl XXV before a 10-year tenure as the NFL's Director of Officiating from 1991–2001, was hired as a line judge. Fred Swearingen, the referee in the 1972 Raiders-Steelers playoff game which produced the Immaculate Reception, was demoted to his former position, field judge. Gene Barth, the line judge on Jim Tunney's crew the previous four seasons, was promoted.
Starting in 1970, through 2001, there were three divisions (Eastern, Central and Western) in each conference. The winners of each division, and a fourth “wild card” team based on the best non-division winner, qualified for the playoffs. The tiebreaker rules were changed to start with head-to-head competition, followed by division records, records against common records, and records in conference play.
|1||4 teams||1–0–0||Detroit, Minnesota||1–0–0||4 teams||0–1–0||4 teams||1–0–0|
|2||Dallas, Washington||2–0–0||Detroit, Minnesota||2–0–0||Los Angeles||1–1–0||2 teams||2–0–0|
|3||Dallas||3–0–0||Minnesota||3–0–0||Los Angeles||2–1–0||3 teams||2–1–0|
|4||Dallas||4–0–0||Minnesota||4–0–0||Los Angeles||3–1–0||Washington, Detroit||2–1–0|
|5||Dallas||4–1–0||Minnesota||5–0–0||Los Angeles||4–1–0||St. Louis, Detroit||2–1–0|
|8||Washington*||6–2–0||Minnesota||8–0–0||Los Angeles||6–2–0||St. Louis||6–2–0|
|9||St. Louis||7–2–0||Minnesota||9–0–0||Los Angeles||7–2–0||Dallas, Detroit, Washington||6–3–0|
|10||St. Louis||8–2–0||Minnesota||10–0–0||Los Angeles||8–2–0||Dallas||7–3–0|
|11||Dallas*||8–3–0||Minnesota||10–1–0||Los Angeles||9–2–0||St. Louis||8–3–0|
|12||St. Louis||9–3–0||Minnesota||11–1–0||Los Angeles||10–2–0||Dallas||8–4–0|
|13||St. Louis||10–3–0||Minnesota||11–2–0||Los Angeles||11–2–0||Dallas||9–4–0|
|14||St. Louis||11–3–0||Minnesota||12–2–0||Los Angeles||12–2–0||Dallas||10–4–0|
|1||Baltimore, Buffalo||1–0–0||3 teams||1–0–0||Denver, Oakland||1–0–0||4 teams||1–0–0|
|2||Buffalo||2–0–0||Cincinnati, Houston||2–0–0||Denver, Oakland||2–0–0||2 teams||2–0–0|
|Dec 28 – Metropolitan Stadium|
|Jan 4 – Los Angeles Memorial Coliseum|
|Dec 27 – Los Angeles Memorial Coliseum|
|Jan 18 – Miami Orange Bowl|
|Dec 27 – Oakland Coliseum|
|Super Bowl X|
|Jan 4 – Three Rivers Stadium|
|Dec 28 – Three Rivers Stadium|
|Most Valuable Player||Fran Tarkenton, quarterback, Minnesota Vikings|
|Coach of the Year||Ted Marchibroda, Baltimore Colts|
|Offensive Player of the Year||Fran Tarkenton, quarterback, Minnesota Vikings|
|Defensive Player of the Year||Mel Blount, cornerback, Pittsburgh Steelers|
|Offensive Rookie of the Year||Mike Thomas, running back, Washington Redskins|
|Defensive Rookie of the Year||Robert Brazile, linebacker, Houston Oilers|
|Man of the Year||Ken Anderson, quarterback, Cincinnati Bengals|
|Comeback Player of the Year||Dave Hampton, running back, Atlanta Falcons|
|Super Bowl Most Valuable Player||Lynn Swann, wide receiver, Pittsburgh Steelers|
This was the second year under the league's four-year broadcast contracts with ABC, CBS, and NBC to televise Monday Night Football , the NFC package, and the AFC package, respectively. CBS restored The NFL Today title for its pregame show. Brent Musburger was named as its new host, former player Irv Cross as an analyst, and former Miss America Phyllis George as one of its reporters.
NBC's pregame show GrandStand made its debut, hosted by Jack Buck (who had left CBS after the previous season) and Bryant Gumbel. 
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The 1988 NFL season was the 69th regular season of the National Football League. The Cardinals relocated from St. Louis, Missouri to the Phoenix, Arizona area becoming the Phoenix Cardinals but remained in the NFC East division. The playoff races came down to the regular season's final week, with the Seattle Seahawks winning the AFC West by one game, and the Philadelphia Eagles and San Francisco 49ers winning their respective divisions in a five-way tie, with the New Orleans Saints and New York Giants losing the NFC Wild Card berth to the Los Angeles Rams on tiebreakers.
The 1986 NFL season was the 67th regular season of the National Football League. Defending Super Bowl Champion Chicago Bears shared the league’s best record with the Giants at 14–2, with the Giants claiming the spot in the NFC by tiebreakers. In the AFC, the Cleveland Browns earned home-field advantage with a record of 12–4, and they hosted the New York Jets in round one of the AFC playoffs. The Jets had started the season at 10–1 before losing their final five contests. The game went to double OT, with the Browns finally prevailing 23–20. The following Sunday, John Elway and the Denver Broncos defeated the Browns by an identical score in a game known for The Drive, where Elway drove his team 98 yards to send the game to overtime to win. The Giants would defeat their rival Washington Redskins in the NFC title game, blanking them 17–0 to advance to their first Super Bowl. The season ended with Super Bowl XXI when the New York Giants defeated the Denver Broncos 39–20 at the Rose Bowl to win their first league title in 30 years.
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