There was an excellent script book published a few years ago by Barry Took and Mat Coward and published by Boxtree. This includes full uncut scripts from a 20 programmes by series so you can see what was edited out by the blue pencils of the BBC.Its strange that a lot of what was edited out was not as rude as what was left in. For an introduction to Polari (the odd language sometimes used on the programme) try this link.
www.chris-d.net/polari/
For the book
www.amazon.co.uk/Best-Round-Horne-Barry-Took/dp/0752218093