I just view Youtube on my big TV using my Xbox, which has internet connection to my broadband.

Perfect picture. No buffering.

The Xbox is also wi-fi/bluetooth enabled, so I can either use that to communicate stuff to the TV from my android tablet/phone... or use a wired HDMI connection if preferred, either though the Xbox, or direct into the (Samsung non-smart) 42" TV.

I have opted out (officially) of having a TV licence, since there is enough on YouTube alone, to last me several lifetimes.