im not really sure how much you can learn from the wsop broadcasts, remember you are really only seeing what like a 5th of the hands? just because player0 scratched his head when he was bluffing one hand doesnt mean thats his tell, you would have to watch him over a mulititude of hands you would have to see a hand where he bluffed and got caught and you would also have to see a hand where you knew he wasnt bluffing in order to confrim your theory, i just dont think that the wsop on espn gives you enough info to really base anything off of. just my $.02