When I was a kid, being a huge Doctor Who fan, I wrote numerous letters to the Doctor Who office largely inquiring about how the show was made. It was 1972 and Doctor Who was entering its ninth season on BBC 1.
I was thrilled to have delivered to me a large package from the BBC containing two full studio scripts for the Jon Pertwee serial ‘The Mutants’, which they were making at the time. The package also contained set designs and studio floor plans for these episodes and a delightful letter from Barry Letts giving me an idea what all this stuff was. New Twelfth Doctor Peter Capaldi is a huge Whovian