Super Bowl XII was an American football game played on January 15, 1978 at the Louisiana Superdome in New Orleans, Louisiana to decide the National Football League (NFL) champion following the 1977 regular season. It was the first Super Bowl played inside a domed stadium. The National Football Conference (NFC) champion Dallas Cowboys (15-2) defeated the American Football Conference (AFC) champion Denver Broncos (14-3), 27–10. The Cowboys defensive team dominated most of the game, forcing 8 turnovers and allowing only 8 pass completions by the Broncos for just 61 yards.