Everybody is different and every opinion different.
We could watch television programming via our projector but PJ performance best when in dark or very dim environment. To us, about 99.99999% of ANYTHING on television is junk/boring/not-worth-the-time but I understand that Cathy and I are just different than the majority of people who seem to take genuine pleasure sitting and staring at that stuff - LOL - we've had all paid TV services removed - if we need to watch the news then we have a nice, outside antenna and we can pull about 15 channels with much better HD than cable or sat. but we still wouldn't put any of it up on the wall and dim the lights
We both enjoy the Wii and occasionally stream something from the "net" but only to our television.
I guess I would ask you is your goal to have a genuine "theater, at the movies" visual experience? If so, then you gotta have the projector with screen and at the least a 100in diagonal image cause - in our experience - today's "little" televisions just can't deliver a theater experience to the home - our 60in is a NICE tv but, doggone it, it is just a little television relatively speaking.
WOW, sorry, I rattled all of the above off to get down to we found having both TV and PJ the best solution. A television for when we want the lights on, multiple activities going on with news or a movie or Wii running but when we want a genuine commercial type theater experience we dim the lights and light up the wall screen.
Mitsibushi does make an 82in HDTV that almost gets close to "theater" in a smaller viewing area and current models are 3D equipped AND you don't have to sit in near darkness to get best quality image.