[B'master] We may have agreed that a maximum of 2 'on the go' is acceptable, in which case it's only fair that rab or Darren can post a new toon being as how they are the latest correct guessers. A clue to No 18 - I've attempted the main [and most recognisable] theme of my 70s TV show - there *is* an introductory bit if anyone needs more ...