My friends youngest son, used to scream at everybody. He would not speak at normal volume.
Dora the Explora was his favorite show. I made my friend watch a bit of the show. All the audience participation was done by screaming children.
He blocked Dora, his child learned to speak like a human being instead of a human robot.
One of the few exceptions is “The Cat in the Hat Knows a Lot About That” on PBS. It is, shockingly, pretty close to apolitical. The characters are respectful to their parents and have good manners in general, and the show is mildly educational while still being well-written and entertaining. It’s the only TV show we let our 3-yr-old watch.
Of course, after a visit from Grandma, we mysteriously find our DVR has been recording all sorts of Disney and other garbage...