The Philip K. Dick story this was based on ("The Impossible Planet") was first published in Imagination in October 1953 and later collected in We Can Remember It For You Wholesale: The Collected Stories of Philip K. Dick: Volume 2
During the scene while Andrews is putting the ship into autopilot he's singing a song under his breath: "You've got to pick a pocket or two, boys; you've got to pick a pocket or twooo...." This is a tune from the musical Oliver. It was also sampled on "Friends" when Joey is auditioning for A Tale of Two Cities: The Musical.
First broadcast 9pm-10:05pm on Channel 4 in the UK on Sunday, 24th September 2017 attracting an audience of 1,350,000 viewers, ranking Impossible Planet as the 16th most watched programme on the channel for the period 18th September 2017 - 24th September 2017.