Hello good lookings! "Dr. Sinister" is without a doubt the best episode of The Flintstones period. There's not a single negative thing to say about this episode, from the seductive Madame Yes to the evil madman Dr. Sinister and his remote volcano island to seeing how Fred and Barney manage to save the day. The episode is just loads of fun from start to finish. You probably will be doing judo chops after you finish watching it! I can't say enough what a terrific episode "Dr. Sinister" is. A judo chop, chop, chop!