From: "Bob" b

My 24" Sharp TV periodically turns dark. The way I get it to come back to a
normal screen is to smack it real hard on the side of the cabinet. It will
then be all right for a week or two then it happens again and then I smack
it again. What is your opinion of this problem, is it on its way out, and
is it worth repairing.
Thank you all for your help.

If its older then 6 yrs id buy a new one.