Thanks Steve - not the same programme.
The one the songs were written for was entitled Lorry (not Pit) Stop and was made around 1949.
I have searched everywhere for a reference, but can find none other than the sleeve note on MacColl's Shuttle and Cage album which reads - "written by Ewan MacColl in 1949 for a radio programme dealing with lorry drivers".
There is no other such programme I know of and I remember Ewan referring to it when we interviewed him.
Polone
Apart from the Dictionary of Historical slang ref, Hotten's Slang dictionary gives this - don't know if there is ay connection.
"Poll, a female of unsteady character; " POLLED up," means living with a woman in a state of unmarried impropriety. Also, if a costermonger sees one of his friends walking with a strange woman, he will say to him on the earliest opportunity, " I saw yer when yer was POLLED up.""
Jim Carroll