I started digging into the whole concept and all that is involved, thinking to make it work right and move the TV would involve re-positioning the surround speakers, the light and the awning switch, all easy a decade ago but more than I wanted to get into now, To just remove the cabinet would not be that hard, but would leave some marks on the ceiling, which could be dealt with. The marks left on the wall and padded cabinet, which the TV would have hidden, were another story. Having to get a new and smaller DVD player was the kicker. The head-banger cabinet is going to stay for now, as this old dog tries to learn new tricks and avoid the offensive corner.
I had to remove the TV anyway to add an HDMI cable for a Dish Wally. Our TV had just four screws, very easy to do. In doing so I found the muffled center speaker hidden behind the vinyl covered padding under the TV. That padded strip under the TV came out with two screws and will be discarded, leaving the speaker and some plywood exposed. I will cover that whole area below the TV with some thin open-cell foam covered with black speaker cloth so the speaker can actually be heard. Not sure what they were thinking at PC at the time, but this should at least fix that problem.