TV PC

If you want to have a fully functional computer system dedicated to your tv/entertainment center, check this out:

these cpu's are really slim and can easily fit behind a wall mounted tv

these specific models are fanless, and basically silent (especially with solid state drive(s))

wifi capability

hdmi out

the best resolution possible

 Orbit Micro

but let's say you have an older plasma tv on a low profile mount,

this one is designed to be in extreme environments

(you may have to sacrifice a tiny bit of profile "lowness") <---- it's in the dictionary.....I checked

Orbit Micro