This is a demo of the Halolight feature. After reading the original paperwork I discovered it had this feature. The halo knob did not respond. So I pulled the fly back cover off and I found it disconnected for whatever reason. I plugged it back into the chassis. Notice the border around the screen. It's a adjustible feature that was supposed to soften the picture. Upon the removal of the fly back cover I discovered a warranty for a RCA replacement tube, which was done in 1966. Along with the original owner's information. The movie is 'A Patch of Blue'. Enjoy my post :)