Ever wondered where the title "Old Grey Whistle Test" came from?
According to presenter Bob Harris, the programme derived its name from
... a 'tin pan alley' phrase from years ago. When they got the first pressing of a record they would play it to people they called the old greys [doormen in grey suits] . The ones they could remember and could whistle having heard it just once or twice had passed the old grey whistle test.
Now you know.