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In page Eric Sykes:

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Nine short seasons of Sykes and a... were produced between 1960 and 1965, ranging between six and nine episodes each, plus a short 1962 special in the BBC's annual Christmas Night with the Stars programme, are lost. Twenty-five of the original fifty-nine episodes have survived in the BBC archives. It was during this series that Sykes introduced one of his best known creations, the wordless slapstick routine The Plank, which originally appeared in Episode 2, Series 7 of Sykes and a..., first broadcast on 3 March 1964 under that title.[citation needed]