Each week a team gets eliminated (the one having the lowest vote total) and at the end the team left standing wins the Super Bowl.
The could call it "NFL Idle"...!
Heh heh, the Cowboys would win every year with that format.
I have a better idea: let’s have the fans call the plays via their smartphones. Then have a bunch of malcontents such as 4chan call for a punt on every down. The fail-cascade would be glorious . . . .