Mine is a '99 DS and the only screws are just inside of the trim holding down a black metal bracket.
There are no outside screws and there don't appear to be any screws coming in from the side cabinets. I have pried jently on the oak trim and it seems to be pretty firmly in place. I hope to get a HDTV in the nest month and then I will get more serious.
I have also checked for Duct Tape and bailing wire and so far, have had no esults.