1979–80 NFL playoffs - Wikipedia
Super Bowl XXII - Wikipedia
1981–82 NFL playoffs - Wikipedia
1988 NBA playoffs - Wikipedia
How important are playoff seeds? Superbowl by Seeds: 1975-2012 : r/nfl
1988–89 NFL playoffs - Wikipedia
Bengals playoff history: The 1988 AFC Championship Game vs. Bills
Super Bowl LVII, American Football Wiki
Super Bowl XXV, American Football Wiki