The Old Grey Whistle Test Pan Alley phrase from years before. When they got the first pressing of a record they would play it to people they called the old greys – doormen in grey suits. Any song they could remember and whistle, having heard it just once or twice, had passed the old grey whistle test. On 23 February 2018, a one-off three hour special of The Old Grey Whistle Test was broadcast on BBC Four, hosted by Bob Harris to mark 30 years since the final episode aired. The show's focus on "serious" rock music, rather than chart hits covered on BBC1 by
The Old Grey Whistle Test of the show as part of "Rutland Weekend Television" in 1975, featuring Eric Idle as Harris, is the first known mention of the fictional band, "Toad The Wet Sprocket" – a later reference on a Monty Python album gave rise to the real-life band of the same name. The parody also featured "all-dead" musician Stan Fitch, whose silent, motionless performance was treated with quick zooms, close-ups, and other visual effects typical of shows like "Whistle Test". The show was parodied on an episode of "The Benny Hill Show", originally aired on 24 September 1975, being called "Old Grey Whistle Tester".