Ken,
I don't know if you are registered over at Suites Owners International Travel Club's forum site, but if you are, a poster by the name of "hitchup" posted some pictures of a similar arrangement. In order to see the pictures, one does have to be registered there and logged into the forum. He has posted two different pictures. One of the TV itself from the bed area and the second photo at the bottom of the thread is of the articulating arm that he speaks of in his description.
His posting was entitled "Bedroom TV replacement" in the "Tips, Tricks, and Aftermarket Mods" thread area.
If you don't necessarily need to see the photos, here is a link to the thread concerned where he describes what he did for making a larger TV work in that area.
http://suitesowners.com/forums/showthread.php?t=1811
Terry