I used to have a 50" Hitachi plasma (1080i) but it left along with the livingroom set and an ex gf in 2009, lol
apparently organic LED Ultra high definition 4k (UHD) tv's will be the norm soon. The major manufacturers are ditching plasma for now as people want "thinner" tv's and whatnot.
Plasma does offer a very good picture(deep blacks) and high fps capability.
I don't really care much about tv anymore as evidenced by the cheap 37" 1080p led "Proscan" tv I have now. The picture is surprisingly decent, sound seriously sucks but it has a 5ms gtg and was only alittle over 300 bucks a few years ago. I do the off grid solar thing now so it's nice that it only uses about 60watts, the toshiba bluray player I have only uses about 15 watts.
For my computer at the moment I use a 19" dell lcd monitor that uses about 40 watts. My 24" Acer 2ms 1920x1200 lcd monitor just sits there doing nothing as it uses about 100watts to run.
I had a 60" sony DLP tv for awhile, that thing was massive in every way, lol but it died a blue pixelated death.
A/V input sucks for just about anything anymore.
and those are my thoughts about this for the moment