The Frankenstein-themed Weird Science episode "Searching for Boris Karloff" is pretty fun, and a free watch on Hulu. :-P
I believe, like most everyone, that the original is the best but i would highly recommend you check this old one as well. In my research of 70's movies, 'Frankenstein: The True Story' was a really good remake and slant to the original. http://www.imdb.com/title/tt0070074/ Here is a link and reviews of all Frankenstein movies made. http://members.aon.at/frankenstein/frankenstein-truestory.htm