Is it a Viewsonic LCD TV? Is there a small (~8") square plastic cover on the side anywhere?
On my '07 3075RL the Viewsonic TV was mounted to a metal slide out bracket. But mine backed up to the commode room. There was a square plastic cover in that room that I could remove, reach in, lift a latch behind the TV, and TV and metal bracket would slide out the front.
On a friends '08 3295RK, they had the same TV but in a different location. We first started looking for screws under the bottom of the TV where the fireplace was. But then I noticed inside the pantry next to the TV there was the same square plastic cover I had. I removed it, reached in, and sure enough there was the same metal slide bracket. Lifted the latch and it slide out the front.
Bill & Patricia
2012 F350 SRW CC LB FX4 6.7