In the context of the Super Bowl XX , the technicalities of the Browns franchise contrast with the revisionism and this means they began playing in 1999 .
All 16 NFC teams have played in an NFL championship game ( Detroit last made an NFL championship game in the pre-merger era ) ; only the three AFC franchises that began play since 1995 ( the technicalities of the Browns franchise relocating means this version began in 1999 ) have yet to reach a league championship game .
Super Bowl XX