When our venerable NowTV stick handed its cap in, I decided to replace it with an Amazon Fire 4K stick. Not only is it reasonably priced, it also gives a much better display quality on our bedroom Hisense 4K TV.
More importantly, it also supports this free EE TV app which allows us to effectively replicate our lounge BT TV box on our bedroom TV!
The app is easy to install and use. We are rather chuffed!