more than likely more than it would cost to buy a new one.
the cost would be dependent on where you are at and local pricing, if there is a warranty involved and how old everything is. lcd/led screens vs an old crt would make a difference as well. you'll need to find a local shop and see what they would charge or do some google searching to see about shipping it to someone who can.
more than likely though, the cost of a new tv is probably cheaper, at least here in the US it should be.