Charlie Brooker stated the idea for this episode originated from his wife Konnie Huq (who co-wrote the episode and is credited under her birth name Kanak Huq) when she remarked that he'd be happy in a world where every wall was a screen.
Although the second in the running order, this was the first episode to be written.
The song "Anyone who knows what love is" is heard again in the season 4 episode Crocodile (2017). Also in that episode, the hotel receptionist refuses to give out the name of a guest, citing a scandal involving a rent boy and a judge from Hot Shot - the talent show from this episode.
The judges are named Hope, Charity and Wraith. This is a spin on a verse from the Bible (1st Corinthians 13:13, KJV) - 'And now abideth faith, hope, charity, these three; but the greatest of these is charity'.