This is potentially a loaded question
A Live Distro with the necessary codecs to playback the latest quicktime files (which I assume may include the excellent commercials you can watch on their website?). Recently Knoppix released a new version of their LiveCD, there are also quite a few other LiveCDs out there that boast multimedia support (check distro watch's LiveCD section). The problem you'll probably run into with multiple LiveCDs is whether they include the codecs necessary to play these files, not a player capable of playing these files.
Give Knoppix a whirl, if it doesn't work out, there are instructions on their website (http://knoppix.net
) that discuss how to remaster a CD with different packages, you could then include the mplayer codecs which *might* be the way to go.