Monty Python's 'Ministry of Silly Walks': Comparison of two complete gait cycles of the Minister, one of Mr. Pudey and the mean curve for people without pathology. (Data source: Motion & Gait Analysis Laboratory, Lucile Packard Children's Hospital at Stanford). Left knee flexion in the sagittal plan of motion normalized to a single gait cycle. (Two gait cycles of the Minister are from the televised sketch, which premiered Sept. 15, 1970 and the live stage performance in Los Angeles, Calif, in Sept. 1980 [video source: the 1982 concert film Monty Python Live at the Hollywood Bowl]. Gait cycle of Mr. Pudey is from the original sketch).