When did the playoffs begin in the football season where the AFC won their last Super Bowl until Super Bowl XXXII?
1983–84 NFL playoffs: The National Football League playoffs for the 1983 season began on December 24, 1983. 1983–84 NFL playoffs:  The postseason tournament concluded with the Los Angeles Raiders defeating the Washington Redskins in Super Bowl XVIII, 38–9, on January 22, 1984, at Tampa Stadium in Tampa, Florida. Super Bowl XVIII:  This would be the AFC's last Super Bowl win until Super Bowl XXXII, won by the Denver Broncos.
December 24, 1983