Unfortunately the remote button approach didn't work. The TV input is from a Rogers digital box. The indication is the numeral 3. Originally the 3 would appear then fade away when the digital box and TV were turned on. The problem has only occured recently. It happened after using and switching off my DVD. Upon going back to the TV, the number 3 has appeared permanently on the screen
The problem has been solved !. Your suggestions about it being TV and Remote Control related were correct. I have two remote controls. I use the Rogers multi purpose one that came with the digital box and the other is pre digital box which I discontinued using. Unfortunately, the latter was used during the operation of the DVD. I gave temporary control of the TV to the pre digital box one, pressed its Display button and voila the number 3 indicator disappeared. I am using the Rogers multi purpose Remote Control and all is normal (no number 3 displayed). I would like to thank both gdkitty and Pauly for their assistance. It is very much appreciated.