Okay, how about another reminder of last year? Last year, it wasn't only the Cardinals who needed an extension for playoff ticket sales. Minnesota needed an extension for their game against Philadelphia. It happens. Local Packers fans just got done shelling out big bucks to go to a meaningly regular season game only to need to find more dough to shell out on a playoff game.
This game will sell out. The clear majority in the stadium will be wearing red. If a regular season Rams game can sell out, this can sell out (And even if it's close, $20,000 from Channel 10 for broadcast rights? It's a no brainer!).
From what I can find online, so far only the Bengals have sold out. Keep watching the news. By the end of today, they'll announce the sellout.