RCALincoln. We have had Paul, 352.255.5211, install 8 TVs for us the past yr, incuding a TV by the pool. He is very conscientious, reasonably priced, and has been doing it for a long time. Give him a call.
If it's a flat screen, just get a bracket for the back of it, from Wal-Mart or Best Buy. Depending on how old the TV is, it should have mounting holes in the back to attach the wall bracket. You'll need a masonry drill and bit too as well as the anchors to attach it.