OK, thanks Chris. I do not have any hardware method of conversion (in fact I have not found even a software method as yet) so I'll prolly stick to watching on the computer....
If you really want to watch the tutorial on a television set as opposed to a computer monitor, yes the Quicktime files can be converted to TV compatible video by several different methods. The best (but I have not tried it) is likely to be via an interface like Apple TV. IOW a _hardware_ device designed to pass low bit rate digital video to a television set. Just remember however that the dowload video files are designed to look best on a computer monitor and may not look as good on a television set.
Using software to convert one highly compressed video codec to another is _not_ recommended for the uninitiated.