Originally Posted by footdoc
...drill out the 4 wood plugs in the front trim.....
I don't think I can help much with the TV replacement since, I think, mine were different, but....
If your wood plugs are the same as mine, you don't need to drill them out. They are a "push fit" in the hole and can be removed by a twist and pull. You may have to use a pair of pliers... carefully, to not damage the wood plug.
I was lucky t find a Sony HD, flat panel TV in the square format just before they changed all TV's to the rectangular format, so mine fit the square format of the existing TV cabinet.