I ended up buying a bigger tv that was DC not a/c, also went with a more flexible mount so you can swing it out past the bathroom door, lay in bed and watch. I have never had a problem with my sat hook up
Can you tell us a little bit more about your mount, or possibly a pic?
I had to add a 1/2 board in the same space the old mount was and attached to bottom of top cabinet and top of bottom cabinet using L brackets. Otherwise the wall support they use will simply tear out when you extend your new mount. send me your email and I will take some pics in the next few days