Today was a busy day: Santa, Greenwich and BBC. In the morning yours truly played Santa Claus at a friend’s daycare, asking each child what their name is, whether they’ve been good this year, and what they wanted for Christmas. The girls overwhelmingly wanted Baby Born and it was Transformers for the lads. For the afternoon and evening Nigel, Georgina, Emily and I headed into London, but making a stop in Greenwich first: the home of the prime meridian, 0 degrees longitude. Then for the evening, after rummaging around used book shops (yes, please), we filled four seats of the audience at the BBC Radio 2′s Drill Hall, witnessing the recording of Clive Anderson’s “End of Year Chat Room” to be broadcast on December 27.