TV

Doctor Who Confidential
6x00 Christmas Special 2010
[Watch it (again) in HD on iPlayer.]

Poirot
12x03 Murder on the Orient Express
This seems to have come in for criticism in some quarters due to its focus on Poirot's religious conundrum. While I agree it didn't need to be made so overtly religious, when you're adapting a mystery where the vast majority of viewers know the answer, it's a good idea to find something else to hold their interest, and Poirot's out-of-character moral decision is certainly an interesting aspect of this tale. Personally, I thought it was all very well done -- hard and cold in story and shooting style, and so maybe not really suitable for Christmas Day (probably why it only managed 14th in the day's ratings) but still good.
(And if you don't know the twist, read the book or watch an adaptation, it's worth it.)
(And relatedly, I watched the famed film version close to this time last year. Coincidencetastic!)
[Watch it (again) on ITV Player.]