We could not find a spot to mount our TV where we could watch from both the dinette and the bed. So, I came up with this system:
I found a wire shelf that would hold a 22" TV and a satellite receiver. Hung it using cup hangers (15lb load per hook), light
chain and "s" hooks. There are two "s" hooks on each chain - Long for dinette, short for foot of bed.
When we are using the dinette the TV hangs over the middle of the bed and we both can watch.
When we are in bed the TV hangs over the foot of the bed.
We used this system almost every day for two months and it worked very well. It takes less than two minutes to change the position of the TV/shelf or to put it up or take it down. One person can do it alone although two make it much easier.
When traveling the shelf and TV ride on the bed. We wrap the TV in a towel and place it so it will not bounce off.
Total cost - less than $10. Found shelf in a thrift store.