all we actually need are the panels.
mounted on the wall.
With enough HDMI sockets to plug in whatever AV product we care to use.
I have a freesat Panasonic - very nice picture but othewise pretty 'dumb'.
Plugged into it, however are:
upscaling multi region dvd/cd player
PS3 - for games (rarely), youtube, bbc, 4od, itv, home movie playback, Blu-Ray/dvd/cd, netflix/lovefilm. PS3 also streams wireless media from the hard disc and either PC.
HTC Flyer - for youtube, google Play Music & spotify/internet radio.
Asus tablet transformer (as above)
Sony Xperia handsets (as above).
plus a dangling vga connector should the laptops need to go on)
The 'TV' only displays the content - and hdmi is the common link.
(oh and a Humax freesat PVR that also does BBC red-button TV catch up)