The state of TV rights to broadcast sports has not been this uncertain in a long time. Unfortunately, many sports organizations, including the Atlanta Braves, made deals with what was Diamond Sports and that has turned into a total disaster for everyone involved. Diamond went bankrupt, managed to keep a lot of their existing broadcast contracts at reduced rates, emerged as Main Street Sports Group, and now the TV broadcast owners are in financial trouble again.
In the past, the issues over TV rights and broadcast fees hadn't really impacted the Braves much as they were highly watched and generally very profitable, so Diamond/Main Street was fine to keep their existing deal in place.