I could be wrong, but unless all the other companies involved with the CTW years of the show get on board, I doubt HBO will be an outlet for any classic eps that haven't already resurfaced. Besides, that would go against the grass-rootsy heritage of the show, but maybe that's just me injecting my feelings on the topic. The show, of course, has since become more corporate friendly with Disney getting involved and all, and that's what made the transition to HBO possible.