A TV with WiFi capability is probably a pretty good choice these days. I'm not so excited about 3D or even the new 4k sets. I find DVD resolution to be more than adequate for most viewing. Sure, HD/Bluray is nice, and my sets are all capable of that, but for most stuff I don't find it necessary.
As time goes on more and more content is available for viewing off the internet, both via subscription and, surprisingly, for free. The free sites can be a bit tricky - they try to lure one into buying all sorts of worthless stuff first, but if one is adept at it, one can get to the content without getting slimed. I've been able to catch up on Mad Men and Breaking Bad without cable and without having to purchase DVD's. And it's also handy for catching up on already free broadcast stuff, like Downton Abbey or Scandal.
Oddly, I find that my new Android cell phone (Virgin Awe) often does a better job of displaying content off the internet with Wifi than my now obsolete Windows XP system. The screen is better (more contrast) and often there is less buffering if any (my internet connection is a relatively slow 1.5M).
My blu-ray player has an option to add a WiFi network adapter... just haven't gotten around to finding the right Panasonic part number and shelling out for it. Presumably it could stream internet content as well. The question is how well the browser built into the video device will handle various web sites.
I have a couple of smaller LED Samsung TV's (22 and 24 inch) that I use for other locations (bedroom, patio kitchen). I'm impressed with the Samsung quality even on these low end models. As far as I know, however, they are not internet ready. But they can double as computer monitors, so I might wind up replacing my old Princeton LCD desktop monitor with one of the Samsungs.
