Whatever you get make sure you have a play with it in the shop first. It’s all about the interface and whether it actually works.
My new Samsung tv, although very nice, promised a lot in the way of fancy smart tv stuff but is a little disappointing.
Apart from iplayer and YouTube it’s pretty limited really in terms of what is available (eg I can’t get 4od, even via YouTube), and controlling anything through your tv with a remote is fiddly and slow. There are crappy apps, games, Facebook etc, but I only want tv on my tv.
The technology is there to stream anything you want over the web, but for some reason we need to wait for apple to lead the way