In reply to George Fisher:
I'd recommend:
As large screen as possible
Smart is not that great. My Samsung will flash up messages for over a month every time I switch on telling me such and such service from Samsung is being discontinued. I don't care. I didn't want it anyway. Now STOP TELLING ME.
It's probably quite hard to get a TV that isn't a smart one though.
Go for one that has an EPG (electronic programme guide) that shows the whole synopsis of the programme. So many show a little bit and you have to click again to see the whole thing. This is so blitheringly stupid that fury renders me incapable of speech.
The built in speakers are rubbish. Some kind of sound bar or amplifier is essential.
If freeview (or iplayer and other free smart apps) doesn't get you the programmes you want then you will have to subscribe to something or other. There are very few (down to and including none) climbing/surf movies on freeview. So a smart TV will be needed, and a subscription to something or other.