I have a 2006 2551 and just added a 24 inch tv on the bigger cabinet next to bed. Mine has a plug 120 volts and wired for antenna inside cabinet.
I bought a tv bracket at harbor freight for about $15.00 dollars and it works great. I started by opening up the cabinet and removed the panel on the right side facing back of rv. Its hollow inside which I knew. I glued up plywood to make 1 inch net thickness
and glued it in the hollow space and used a pocket hole jig to screw to solid pine frame. I put the panel back on with staples. Drilled hole through cabinet and ran my wires. Its solid and worked out great. Sorry I don't have any pictures.
Scott