This really only applies to anyone who has a certain model of replaytv, I believe the 4000 seris and 5000 series, you'll need to check the site, but, you can stream from your ReplayTV to the mac and watch whatever you've recorded! Its great, works very well, you can also download what you recorded onto the mac and burn onto a DVD for playback. Just thought I'd share that with all the Mac users here. The site is www.dvarchive.org 
Have Fun!
Have Fun!