Then make sure your beta application is up to date!
It looks like TiVo is actively looking for more testers, and they recently revised the beta application with some new questions. It looks like they’re looking for people to test TiVoToGo, XM Radio support, and maybe HDTV, judging by the kind of things they’re asking about. You don’t have to be a geek either – they look for the average user to make sure new features are usable by everyone, as well as geeks who find creative ways to break things.