Emperoreddy
Show Me What You Got!
Kind of like the pixels argument. Many people say they cannot see a difference after 1080p tv's. Probably the same reasons that 4k tv's wont really sell that much. Some still love watching grainy movies from the past and do not like remastered movies. It is a issue of taste. Heck movie theaters in my area were disappointed they could not show movies on film anymore. Now with movies changing frame rate to 48 fps like the hobbit, the feel is different and also the speed. Everyone has a different opinion on how music should sound and how movies should e played. Can't please everyone.
Well when it comes to different TVs playing the same resolution does depend on the type of TV because other factors come into play. A lot of it goes into the chorma and color. For example regular LCD TVs can't actually show true black. The nature of how they project an image prevent it, where as Plasma and I think OLCD can as well. So you could definitely see a difference between TVs.
That said there is a point where your eye just can't tell the difference anymore. I believe 4K is that point, but I might be wrong. I know some are already playing with 8K, but I know it gets to a point where it stops mattering. Especially because at the moment you can't increase immersion in the home so you can't trick the brain into thinking you are actually there in the image (the omnitheater in the Liberty Science Theater is a great example of a screen that can trick the brain).
I doubt we will see 4K broadcasting anytime soon. Hell they still don't broadcast 1080P...I think depending on the network its still 720P or 1080i. Digital Distribution might see it for movies (not sure a hard medium will step in at this point), but broadband coverage in this country is pretty sad so I don't know how long it could take to catch on.