If I set the picture using the remote to 4:3 it reverts to 16:9 after about ten minutes stretching the images horizontally. I was told that this was related to the TV being in shop mode. However, none of the solutions works: not holding the exit; not holding volume then menu on the TV itself, etc. I can go to setup but the Plug and Play option is always grayed out and cannot be selected. (The manual says select menu then Setup then Plug and Play to reset.) I also put a paper clip n the hole at the bottom of the remote labeled RESET without results.