One of the most amusing aspects of doing "For One Night Illegally - The History of the Bootleg" on Radio Four (on the iPlayer for the next few days if you're interested) was the inclusion of extracts from the legendary Troggs Tapes. These are famously peppered with four-letter words; therefore we didn't expect to be able to broadcast them.
The producer spent a good deal of time involved in the "compliance" issues which, post-Brandgate, seem to occupy much of a BBC producer's time. (I met a Radio Three producer the other day who was complaining about how time-consuming all this was. On Radio Three? What are they doing over there? Placing prank calls to Daniel Barenboim? Asking him if he's got the hots for Mitsuko Uchida? Talking about being out on the lash with the Berlin Phil?)
Anyway, it was finaly agreed that we could use a section of the dialogue with the obscenities bleeped out. However we were also given a strict limit on exactly how many bleeps we were allowed. It's a bit like rationing asterisks.