Why do BBC shows have 'Producers'??

[Penthode]

I had an broadcast engineer friend working at BBC Television Centre who did not possess a TV. One day he was visited at his door after it was determined from records that he did not have a TV license. The inspector asked him why?

My friend told me that he replied it was because he did not have a TV set. He further asked if he was required to have a dog license if he did not have a dog?