Doing ChaLean from the gym?

Yeah a little different, hm? I can't really bring my DVD player into the gym and while I could put it on my iPod..I dunno if I really want to..I may do that, though. But what I'm asking is can the DVDs be adapted to be done in a gym without a TV or do you have to memorize the DVD to do it outside of the home? I can't afford it right now, so I was gonna download it on my computer and watch it, but I think it comes with other components and such.