As small as they are, I wonder how much of a stretch it would be to just start putting commodity Arm 1.1ghz dual core CPUs and a build of android - basically a cell phone - inside any and all TVs these days?
Just pop it in there in and amongst all the other circuitry, stick an SD slot on the side of the TV for folks who want more storage...bam, Mr. and Mrs. Livingroom can phone up Jane and Johnny while they're at the university, play Angry Birds, look at photos, etc. all on the TV, no screwing around with a dedicated computer. Just use the remote.
At commodity prices it could hardly cost more than a few bucks to outfit each TV thusly.
(Plus it'd hurt Apple, and I'm all for that.)
Perhaps ironically, you have probably hit upon Apple's strategy... Though they look to be using a small ARM based box
