projection tv

I have taken apart all TV's . I found a Mitsubishi projection that i decided to try it seems to work
I have been able to sorta get it clear . The TV works but far from perfect in color am i wasting my time trying to adjust , is there a trick to them or after many years of use do they get shot . If I call a pro in to adjust might be a waste. Over all the fact that it looks different at different angles is a pain . I realize this is old technology but if I could just find a way to tweak it to the best it could be it will be a nice tv for the kids