Here's what the current make up looks like:
14 teams under Sinclair: (Arizona, Atlanta, Cincinnati, Cleveland, Detroit, Kansas City, LA Angels, Miami, Milwaukee, Minnesota, St. Louis, San Diego, Tampa Bay, Texas)
Chi Cubs - co-owned with Sinclair and unsure how they'd fare in a Sinclair bankruptcy
White Sox - Currently make 120 million from NBC sports net, but that expires in 2024 and they are unlikely to renew as NBC sports wants to mostly exit this space.
A's - 48 million through 2029 on NBC which likely won't renew.
Giants - 63 million through 2032 on a deal that likely won't renew.
Phillies - Averages 100 million plus until 2040 with NBC who also are owners of the Flyers and want to keep this channel running.
Rockies - on AT&T but not much known
Houston - AT&T until 2032 at 80 m/year
Pirates - AT&T but not much known
Mariners - AT&T 100 million until 2031
Red Sox - Probably 100-150 million from NESN but dropping at about 10% per year.
Yankees - 150-200 million from YES
Mets - 54 million per year on SNY until 2030 who wants to get out of the business.
Dodgers - 300 million a year until 2038!
Os/Nats - MASN still makes 150ish million/year, but obviously not much is going to the teams.
The Phillies and Dodgers are the only obvious winners for the medium/long term future. Giants, Astros, Mariners are in good shape for 7-8 years. Red Sox and Yankees are fine for a while. The other 22 American teams are in precarious positions and need to figure out something for the future.