[Fumblerooski]

Originally Posted by alnorth

going back further, it looks like the answer is 17 years ago:

1999 - Rams 6-0 - NFC West Champ and #1 seed, won Super Bowl XXXIV
1998 - Vikings 8-0 - NFC Central Champ and #1 seed, lost NFC championship
1997 - Broncos 6-0 - AFC Wild Card and #4 seed, won Super Bowl XXXII
1996 - Colts 4-0 - AFC Wild Card and #6 seed, lost in Wild Card round *
1995 - Dolphins 4-0 - AFC Wild Card and #6 seed, lost in Wild Card round
1994 - Chargers 6-0 - AFC West Champ and #2 seed, lost Super Bowl XXIX
1993 - Saints 5-0 - Missed Playoffs

The 1993 New Orleans Saints began the year 5-0 and probably entered their week 6 bye feeling good about themselves. They fell apart beginning week 7, going 3-8 to end the season with an 8-8 record.

* The 1996 Colts and Chiefs lost the tiebreaker for the #5 seed to the Jaguars (conference record), but the Colts won the tiebreaker over the Chiefs (head to head) to barely make the playoffs as the #6 seed.

This was what I was looking for. Not a premature playoffjaculation... Thanks alnorth!