Peerless AV sells all sorts of mounts and are very good,
as I've had experience with them. They actually have a new one that's IR
remote controlled. It adjusts in all sorts of ways including closer and
farther from the wall. They actually now have wireless ones where you
can keep your players, boxes, etc...up to like 100 feet away. I think
this one is the model WL-SA761PU-100. They sell all sorts of mounts
with many specs for different uses and different types of TVs. You
should be able to Google them. Of course for any brand, the more features it has, the
more expensive it will be.
Also, Amazon sells Peerless and other brand mounts. Here you can read user reviews and see how they are rated, which is great. They actually have a section for 'top rated tv wall mounts' here:
I hope this helps!!!!!