What was the last game blacked out by NFL rules?
Do you mean from over-the-air-broadcast to the local market? I ask because I believe that you cannot watch live your local games on NFL Network (or Gamepass whichever it is).
Looks like Buffalo and San Diego in 2013, per this wiki article.
Yes, the old over-the -air blackout rule that was in effect when a game didn’t sell out.
Ah, the good old days - I remember local corporations getting good press by buying up the outstanding Viking’s tickets so would be on the air locally.
Yes, I remember it happening with the Baltimore Colts as well.