Monty Python completists will especially appreciate Do Not Adjust Your Set, a precursor to Monty Python's Flying Circus starring Terry Jones, Michael Palin, and Eric Idle, along with fellow writer-performers David Jason and Denise Coffey. Ostensibly a children's show, Do Not Adjust Your Set also includes the then-future Python Terry Gilliam lurking off-camera as an occasional animator, and the Bonzo Dog Doo-Dah Band with Neil Innes, an important collaborator on several Idle projects that lay ahead. A freewheeling sketch show from the late 1960s, originally broadcast on the Rediffusion network before switching to Thames Television, it's impossible not to see Do Not Adjust Your Set as a blueprint for Flying Circus. The two hours' worth of material in this DVD set includes early versions of Palin's familiar role as an incompetent shopkeeper, in one instance selling shoe polish to a man who asks for bananas. The entire cast stars in a vignette about a classical music quartet whose instruments produce the sounds of an auto accident and an air raid. Terry Jones plays an insurance agent who wrecks Palin's house, and Idle essays his soon-to-be signature performance as a pleasant-sounding, BBC news reader spouting surreal headlines. This is a gold mine of Pythonesque comedy in an embryonic state, plus the Bonzo Dog Band performing "Death Cab for Cutie." --Tom Keogh