When watching a Television that is 42 inches in screen size the optimal viewing distance for best picture is between 5 feet to 8 feet away from the television.
Any closer than 5 feet then the image on the Television won't be as good as it would be if your'e viewing it from a shorter distance.
So place the 42 inch Television at least 5 feet away from your chair or couch and you should get a quality picture from the 42 inch Television screen.