There's weirdness sometimes if devices don't respect your network's dns settings and just use their own. You can override that by forcing a dns redirect if your router supports that but not all consumer ones do unless you put openwrt or something on them.

it's not about the ads.. it's the quality of shows/movies. I honestly don't care for any of it. it's not interesting

Not necessarily, a lot of apps use internal values for DNS resolution and other tricks to counter DNS level adblocking.