DVD available !
Cool web site devoted to the GG --- http://www.groovie-goolies.com/
It mentions the availability of a DVD with extra features.
Also, there appear to be copies available on amazon ---
http://www.amazon.com/s/ref=nb_sb_ss_i_2_9?url=search-alias%3Dmovies-tv&field-keywords=groovie+goolies+complete+series&sprefix=Groovie+G%2Cmovies-tv%2C634
Enjoy !
"J'ai l'oeil AMÉRICAIN !"