Doctor Who’s return was suitably triumphant and exciting, although as Tom commented to me in person at the weekend, bewildering interwoven with pretty much every episode shown in the earlier part of the season. The number of internal references is truly astonishing and perhaps an indicator of the show growing up, in some sense or another, or perhaps just appropriately intricate for the kind of passionate fans the Doctor attracts.

Time travel does give me a headache, though. I’m sure Doc Brown would agree.