Last year the Packers had an operating profit of $9.8 million.
They received tv revenues of $95.8 million.
Without the tv revenue they would have lost $86 million.
Numerous pro baseball teams are community owned- including the Famous Toledo Mud Hens. The Reading Royals (ECHL) are in the process of being 50% owned by the community. "North" American teams that are community owned include the Edmonton Eskimos, The Winnipeg Blue Bombers and the Saskatchewan Roughriders.
You are simplifying things a bit too much there with the OI. Green Bay is in the bottom 1/3rd of the league in ticket prices, which leaves them with a lot of room to raise them if for some reason TV revenue went sour. The fans there can afford it, the ticket costs are low because they are owned by the public and aren't in it for the profit of an individual owner. The Packers could easily make $70M + per year. They have the least amount of debt of any team in the league and are worth over $1B.
And while there are minor league teams here in America that are community owned, none of the major professional ones are. It's a little different to have a small team owned by a city than one that is worth a billion dollars. I know some CFL teams are owned by the public, but their salary cap is half of what NHL superstars get paid. I'm pretty sure a rich guy could pick up a CFL franchise a few years ago for under $20M. Its not even comparable.
Regardless, to imply that Green Bay is a small market that is reliant on TV revenues to survive shows that zero research was done.