It has to be done on a wall containing support beams, since a tv won't stay attached to bare plaster.
Can I Mount Tv On Plaster Wall. We can do this for. We know of other installers who.
Sonax PM-2230 TV Motion Wall Mount for 32 - 90 in. TVs ... from i5.walmartimages.com
Take a seat to see if you're able to view the tv comfortably without straining your neck. Is there a good stud finder that can accuratly find studs through plaster? As a professional home theater installer, i've used toggles many times and never had a tv fall off the wall.
You will need a masonry drill.
The best type of anchor for this is an alligator anchor, made my toggler. First, the installer was not familiar with the mount i had purchased (he said so). Mounting to this type of wall is quite easy. Mount the tv to an interior wall.