Hm. According to one of those links, I can't get advanced wishlists without enabling backdoor, and I can't enable backdoor on my S2 HD DirecTivo without hardware hacking, something I'm not prepared to do right now. And even then, I'm not sure what kind of ANDs I'd be able to do that'd get me what I wanted.

Starting to sound like my only option is to print the HDNet hockey schedule and manually select the games I want to watch.