Really?
Ok, I’ll bite.
A 4 month old has no real interest in tv. Older than 6 months maybe but a 4 month old is attracted to the light/movement and nothing else. Whatever’s on the tv will not impact them at all.
DC1 “watched” loads of tv. I had it on pretty much constantly when I was at home. Given I was on my own all day with a 4 month old it was my only company some days.
DC2 much less as out and about with DC1 most of the time. But when it is on its kids tv. They still take very little interest in it now at 10 months. When DC1 is not around DC2 “watches” the news a lot.