We do not have a forum dedicated to HDTV calibrations; but if you google your tv set and callibration you will probably find some callibration #s, either on this site or at AVS.
What tv do you have, and what is the callibration question you have?
Feel free to ask your questions here in the TV area at Sat. Guys. Ive been surfing this fine site for years and would happily answer any intelligent / thoughtful questions asked.
Problems with Best Buy ISF calibrations:
1. you dont know who your getting, or how much experience they have
2. you dont know what type of gear they are using, its accuracy or lack of, etc etc.
So generally speaking...YMMV.