Sports leagues similar to or like National Football League

The National Football League (NFL) playoffs are a single-elimination tournament held after the regular season to determine the NFL champion. Currently, seven teams from each of the league's two conferences qualify for the playoffs. Wikipedia

Professional American football league consisting of 32 teams, divided equally between the National Football Conference and the American Football Conference (AFC). One of the four major professional sports leagues in North America, and the highest professional level of American football in the world. Wikipedia

Since its inception in 1920, the National Football League has played games on Thanksgiving Day, patterned upon the historic playing of college football games on and around the Thanksgiving holiday. The NFL's Thanksgiving Day games have traditionally included one game hosted by the Detroit Lions since 1934, and one game hosted by the Dallas Cowboys since 1966 (with two exceptions in 1975 and 1977). Wikipedia

Annual championship game of the National Football League . It has served as the final game of every NFL season since 1966, replacing the NFL Championship Game. Wikipedia

One of the two conferences of the National Football League (NFL) The NFC and its counterpart, the American Football Conference (AFC), currently contain 16 teams organized into 4 divisions. Both conferences were created as part of the 1970 merger with the rival American Football League (AFL), with all ten of the former AFL teams and three NFL teams forming the AFC while the remaining thirteen NFL clubs formed the NFC. Wikipedia

The television rights to broadcast National Football League (NFL) games are the most lucrative and expensive rights of any American sport. Television brought professional football into prominence in the modern era after World War II. Wikipedia