I have a relative like this, but she watches absolutely nothing. She believes some of her family members are out to get her though. She's in an assisted living facility and her phone has been taken away because she has called the police too many times, claiming that one of her family members is breaking in her window, to poison her.

I'm not claiming that's the same thing, but I'm not sure less time watching videos will correct the issue or won't just lead to some other issue.