I don't think they're available on DVD...I searched around but finally had to settle for VHS. If you find them on DVD let me know!
I have both of these videos! I try to back them up on my digital8 tapes but my recorder wouldn't let me (cause of Marcrovision Copyright Inhibition).
don't know about dvd - can't find any online... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1572735096 Ebay has both vhs together for $6 right now