I'm sure they are not. You have to even question equal time on the networks. Otherwise how could Kimmel and Colbert have done what they did all these years. You can look at the numbers on their guests and I mean actual politicians. Equal time is for news programs and I don't think entertainment shows are covered.
You are confusing the Equal Time rule with the Fairness Doctrine, which has been repealed. Fairness Doctrine required broadcast TV and radio to allow time for opposing viewpoints.
The Equal Time rule requires stations to allow qualified candidates equal time and rates. So It wouldn't apply to Finebaum right now because he is not yet a candidate, but if he decides to run then I think he will have to leave the SEC Network.
When Trump hosted SNL in 2015, NBC had to give away free time to a bunch of other candidates. When they had Kamala on last Fall, NBC wound up airing a bunch of Trump ads during the NASCAR race the next day.
The Equal Time rule does apply to cable networks, but with slightly different rules than OTA networks.