A delightful romp; possibly a bit slow and repetitive in places, but the humor more than makes up for it. Notable for being the show's first pseudohistorical, the introduction of the sci-fi elements makes an interesting twist on the standard Hartnell historical. Peter Butterworth plays the bumbling Monk brilliantly, and I adore the way he and Hartnell play off one another. Vicki and the new companion Steven also make for a great duo; it's a shame that they didn't get more screen time together. Not the greatest of the era, but highly recommended when you want a lighter story.