Monty Python's Flying Circus premiered on BBC1 in 1969. The first episode was broadcast on 5 October 1969 at 10:55 p.m., launching the surreal sketch series created and performed by Graham Chapman, John Cleese, Terry Gilliam, Eric Idle, Terry Jones, and Michael Palin.
The programme's unusual format challenged conventional television comedy. It used abrupt transitions, animated sequences, recurring characters, and sketches that often ended without a traditional punchline. Terry Gilliam's cut-out animations helped give the series its distinctive visual identity, while the show's disregard for standard linking material became one of its defining innovations.
BBC2 is a common mix-up because the fourth series was broadcast there in 1974. However, the original premiere and the first three series were associated with BBC1. The programme ultimately ran for 45 episodes across four series from 1969 to 1974, helping make the Python troupe internationally famous.