I have a 2002 GT325 and have done some work inside the TV cabinet (though I haven't replaced the old CRT yet).
If yours is like mine (and I don't think FR would have changed the design until flat panels were widely available), climb onto the top of the passenger-side dashboard and sit facing to the back of the rig. On the fron surface of the TV cabinet (the face nearest the windshield) there's a rectangular louvered panel attached by four screws.
Remove this and you can get to the tie-down screws that hold the CRT display box into the wooden structure. By then removing those fasteners and then taking off the front decorative wood frame, you can slide the old TV out. On mine, the screws hodling the decorative frame on are covered by wooden buttons. They should pop off or unscrew from the fasteners.
Frank and Eileen
No longer RVers or FR owners