Please tell me you're making that up. That's tremendously sad. (I couldn't find anything on the lions store after 30 seconds of googling anyway).
... somewhat surprisingly, per wikipedia the Bengals are actually in a one-year longer drought:
https://en.wikipedia.org/wiki/List_o...ctory_droughts
Impressively, they have lost in the Wild Card five straight years and six of the last seven.
Most total pain would probably have to be the Bills - their playoff win drought is four years shorter than the Lions (20 vs 24), but they haven't made the playoffs at all for 16 years.
Anyway may god have mercy on all our souls.