https://www.raspberrypi.org/blog/build-the-ultimate-4k-home-theatre-pc-using-a-raspberry-pi-4-and-kodi/
According to the above you can do a kodi install and it'll handle the bandwidth.
I have no idea what resolution it's throwing my TV right now but it's the biggest best monitor I've ever used, and I don't notice any dropouts in video when web surfing and then playing videos.
So 100 bucks for the raspberry pi with the keyboard built in (really take the fully constructed model, you're not building hardware for the sake of building hardware) and then another 20 bucks for a tiny remote keyboard should be all you need.
According to the above you can do a kodi install and it'll handle the bandwidth.
I have no idea what resolution it's throwing my TV right now but it's the biggest best monitor I've ever used, and I don't notice any dropouts in video when web surfing and then playing videos.
So 100 bucks for the raspberry pi with the keyboard built in (really take the fully constructed model, you're not building hardware for the sake of building hardware) and then another 20 bucks for a tiny remote keyboard should be all you need.