I have a Samsung HL61A750 TV. I must have inadvertantly pressed a button on the remote. There is a small number 2 (about 1 inch tall) on the upper right side of the screen. I have not been aboe to find out what it means or how to remove it. The TV is receiving a signal from a cable box through an HDMI cable. Everything is working fine. I just don't know what the '2' means or how to control it.