Doctor Who: Every Doctor's First Episode Ranked Worst To Best
10. Deep Breath
Peter Capaldi's debut as the Twelfth Doctor was an atmospheric Victorian horror movie with dinosaurs, but it dials down the fun of that premise way too much.
Deep Breath is emblematic of the mistakes that were made during Capaldi's first series. It's a strong run of episodes, but the Twelfth Doctor is rarely afforded the chance to lighten up a little.
Still, there are some great set-pieces in Deep Breath, from the Doctor and Clara's tense meeting in the restaurant, to the unveiling of his new costume and TARDIS colour scheme. The scene where the Doctor reveals that he didn't abandon Clara after all is a proper punch-the-air moment that confirms this more abrasive incarnation is still the same character underneath.
By the end of Deep Breath, Capaldi has arrived as an older, more serious Doctor, but still the same hero that we've followed for 50 years.
Which is why it's utterly insane for Steven Moffat to write in that scene where Matt Smith tells Clara, and the audience, not to worry about the grumpy old man not being boyfriend material.