I meant specifically with the Apple TV, since that was the topic of conversation. In case you weren’t aware, the Apple TV is just a box. It’s not an actual screen. So the consoles, DVD, cable, etc are irrelevant as they would be plugged directly into the screen as well. You’d just change screen inputs to use those.

Apple TV has a fully functional Plex app. In fact, it’s pretty widely regarded as one of the most compatible Plex clients, and it’s able to DirectPlay all of the major codecs. It’s better than the apps that come built into the major smart TV brands like Roku, as many of those don’t support modern codecs like HEVC/H.265.

Pihole would happen on the DNS level. It’s not something that would require specific compatibility with the Apple TV. Unless you’re not running it on your whole network, and are manually assigning devices to it via custom DNS for each device? That would be odd, but maybe you don’t have control over your router. But even then, you can just change the network settings on your device to point its DNS at your pihole.

As far as android phones go, are you just looking for screen mirroring? Or looking to use it as a remote? Either way, you can do that; There are apps for remote control on the Google Play store.

Existing and future streaming services will likely be better supported on Apple TV than on something Iike a Samsung TV. Hell, my Samsung TV already doesn’t fully support Plex, because the app hasn’t been updated in literal years. Apple is actually pretty well known for legacy support. Hell, their fourth generation Apple TV from 2015 still has support. That’s almost a decade of support. Meanwhile, my Samsung TV is only ~5 years old, and already has apps that haven’t been updated in literal years.

Apple gets flak from the android users every time they phase out an old model of hardware, but in reality they have a better track record than most android manufacturers. It was always funny seeing the Android users memeing about Apple phasing out a 6 or 7 year old device, when their phone is half as old and is already unsupported. Google has improved with this in recent years, but only because Pixel users raised hell and started complaining to the FTC about getting dropped after only 3 years.