BBC

Frank Cottrell-Boyce had the unenviable task of writing that second album, and did so using the preferred device, set by The End of the World in series one, of taking the new companion into the far flung future. Happily, despite a few niggles, Smile maintained the sparkling early form of Series 10.

With the wonderfully quirky and contemporary idea of robots communicating through emojis, and some clever twists on a number of well-worn themes and tropes, it will have almost certainly raised a smile or two, despite the gruesome horror of humans being turned into fertiliser for the crime of being sad.

The episode was more of a standalone episode than The Pilot, which had set up the arc of this series and introduced new companion Bill Potts, and for that reason alone it might be destined to be overshadowed by some of this year?s other entries. But for now at least, Smile has certainly got fans talking.

Thankfully we didn?t get to see the obvious question mark on the Doctor?s emoji disc, but Smile still leaves us with plenty of questions to ponder as we await episode three.