Thanks, if it was answered before then a search for "what's on" "crossword" and BBC did not find it, thanks very much trudium for your non-judgemental answer.
I'm sorry if you took my response to your question as judgemental. Any time I state this, it simply means that I did not work out the answer personally, thereby not taking any credit. The reason I remembered it was the fact that original posting had the wrong number of letters for the correct answer.
My apologies geo, I thought there was an implied criticism that I had not searched previous answers before asking. I had done a search, but found no reference to this question, thanks again.