I’ve noticed with Fox News that the evening shows have a commercial break for about 3 minutes starting at 55 or 56 minutes after the hour, then come back for a minute or two of the original program, then move right into the next program without a break. I assume that is to keep as many viewers as possible for the next show—if there was a commercial break at that point they would lose a lot of them.
I noticed that trend a few years ago on TV, moving from one show to another without a break. No big title intros anymore, like back in the 60s; think “Bonanza” or “The Fugitive.”