Looking to upgrade my T8 v2

Afternoon guys,
New to the forum. Enjoyed reading what you have to offer this morning. I’m after some specific advice in terms of upgrading my current T8 version 2.

So any advice would be greatly appreciated. There isn’t really a budget but I’m not totally technically minded. I’ve been recommended the Nvidia shield obviously, but the gaming side wouldn’t be used.

I will be using the box for watching tv series, movies etc. But also for streaming live sport via [removed] – dangelus I don’t currently have a 4K tv but I will be looking to purchase one soon.

Thanks in anticipation.