After burying the black box with a tombstone Rimmer wanted – the task leading to Lister and Cat breaking their legs in the process and creating the footprint they would find – Lister completed his jigsaw puzzle, removed the pages from his diary, before he and the others went to erase their memories. A quarry in Wales was used for the location of Rimmer's death-day opening scene for the episode. The live action footage of the scene was merged with model footage of "Blue Midget" and "Red Dwarf", which was seen in the distant background. During the pre-record filming of the episode, Craig Charles's then-wife was giving birth to their son Jack; Craig filmed the scenes where Lister's face was visible as quickly as possible and then rushed away to be at the birth of his son (arriving twenty minutes late). The remainder of location shooting, in which Lister was wearing a space-suit, had production manager Mike Agnew as the double for Lister. But in fact the plaster cast couldn't fit Agnew's foot as he had bigger feet than Craig Charles – a close look at the episode would reveal that there are several frames in the episode where neither the Cat nor Lister (stood in by Agnew) had casts. To film Lister's drunken pilot skills on the flight back to "Red Dwarf", wires were used by the model team to give the jerking motion. The one guest star was Sabra Williams who plays Lise Yates. In their book "The Red Dwarf Programme Guide", Chris Howarth and Steve Lyons point out the "uncanny similarities" between the "Red Dwarf" episode "Thanks for the Memory" and the "" episode "Clues", which aired on American television nearly two and half years later. Howarth and Lyons note that the American show "has the cast waking up to find that time has passed of which they have no memory. Despite the resistance of their mechanical crew member, they attempt to find out what has happened, but learn that they were better off not knowing. One of them even has a broken limb..." Originally broadcast on the British television channel BBC2 on 20 September 1988 in the 9:00 pm evening slot, the episode was voted by readers of the "Red Dwarf Smegazine" in a 1992 poll as the 19th best episode of the 30 then existing, attracting 1.9% of the vote. This made it the fifth-ranked of Series 2's episodes. However, director Ed Bye stated in the Series II documentary, "It's Cold Outside", that the episode was a standout of the series.