Our MH is similar, but plastic housing. The front trim ring must be removed first. Mine had screws holding the trim ring onto the sides and bottom. Since yours is wood, screws may be hidden by dress plugs. Once the trim ring is removed the analog TV is held in place with a metal frame that removes via 2 bolts into the cabinet.
That's how mine was, yours may be quite different, but it's something that may help.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy