Hi Nick: I certainly have memories of seeing Dr. Crock and his Crackpots at
t he Bingley Hall Ideal Home Exhibition. My brother Bill was about 3 at the time and so this would have been 1949, Bill was lost and we finally found him sitting on the floor with the other small children watching Dr. Crock and his Crackpots. They were very zany I remember and people just seemed to love them.
I have had a look around on the Internet and found a few things including a photo of some of the group undated from a visit to Findon Village. The lady with the microphone was bitten by a piglet according to the web page. You may already have seen this but just in case
https://images.google.ca/imgres?imgurl=https://www.findonvillage.com/pq1451_roger2_0980.jpg&
I had a look around for Harry Hines who formed the group originally called
Professor Crock and his Crackpots. He was a well known saxaphone/clarinetplayer it seems.
It also looks like the band were on the Bill in many theatres all over Britain. I wish we knew more about them.