This midweek we kick off what’s sure to be a sporadic new feature: The Arrow of Time and a Half. These shorter, simpler episodes eschew musical breaks and WhoTubes in order to deliver a quick dose of podcast. This time, we are predictably late talking about the 5oth Anniversary teaser, which is just chock full of references to Who’s past. We try to sort them all out as we look for clues about “The Day of the Doctor,” all in under thirty minutes! Now that’s bang for your buck, if “buck” were a unit of time.