Distance Ed aka Correspondence classes (Score 1)

I started my B.A. in 1992, via Distance Education from the University of Waterloo. Course notes and a set of audio cassettes would arrive in the mail. One would listen to the lectures and submit assignments by set deadlines. I took a bit of a break from education, and when I resumed, they had moved to MP3 lectures mailed out on CD. Some of the newer courses involved online message boards, which was a great step forward, offering current information as well as feedback.
I completed my degree entirely through this method. I am presently doing work for the same university editing the new courses as they are produced; they now consist primarily of animated Flash videos. I find these to be much more engaging that the old audio-only cassettes.
I don't actually know if these course materials are still delivered on CD or DVD via snail mail (I use ftp to retrieve the material to be edited). Regardless, I have observed first-hand the transformation from deadly-dull audio tapes played in isolation to full audio-visual presentations with message board (and possibly chat) integration. Many (not all, but many) courses work well in this format, and one can complete a number of degrees in various faculties entirely through what UW now calls the "Centre for Extended Learning." I don't think that the students miss out on anything at all by going this route.