In my CYV (Woodlawn aka Durham) in the guest BR I hung a 42" TV three years ago. I was going to mount it in the 3' of space between the top of the closet and the ceiling. I didn't want to use the right wall, it was a masonry exterior and the left wall was not enough room. With the bed situated, it had to be above the closet.
When I went went in I found metal studs around the top of the closet. I went about 18' higher than I had planned and found wood studs. Since you're usually viewing a TV laying down and reclined in bed, it wasn't a bad angle and of course the TV can be adjusted downward with the rack I was using. It came out good enough and total cost, $27 for the rack from Amazon and $50 for the concealed wire kit from Home Depot. Here's a view from the bed.
