TV has sound but no picture
Everything is worth fixing provided the price is right. However, in this case it's probably not cost effective to repair the unit. Start with the easier fixes, such as bulbs, etc. Even then, some of the components can be quite expensive, or simply unavailable. I would suggest getting a quote from a local repair shop in order to make an informed decision before you get to far into it. You could end up spending just as much to repair it as you would on a new unit.