Our dinette in the 220 is on the port side in a slideout, and the TV swivels clockwise, which means we can angle the TV toward the dinette, though we seldom do. Ours came with a Jensen TV that seems to work pretty well when viewed from an angle, even the additional angle that the slideout creates. Probably helps that we usually sit near the far end of the dinette, too.
Excellent work in getting the TV to turn in the direction you need. I agree with the poster who said the factory probably got confused. With the 220 and 260 having the same entertainment center but dinettes on the opposite sides, I can see how that could happen. Glad to know there's a fix.
2013 Surveyor SP220
2010 Silverado LT 5.3 V8
The world is a great book, of which those who never stir from home
read only a page. - St. Augustine