Like Ethel, I don't much enjoy watching DVDs on the PC - or did you mean to take an output from the DVD player to the monitor? I don't think this is possible, because there is no synch generator in a DVD player. I bought a cable from Maplin that was supposed to provide the sync.. but having tried it on a number of monitors, I've completely failed to get it to work.
As s10driver says, many LCD TVs have monitor inputs so you might consider that route.
I really would not recommend a TV/DVD combination of any description - think about the average life of a DVD player, and you will realise that it won't be long before you have a TV with a permanently attached piece of junk!