Corrected entry: In the episode "D.N.A.", Lister tells Kryten he is an "enlightened 23rd Century guy", but if the clock in the episode 'Stasis Leak' is anything to go by, Lister was in fact born in the 21st Century. [If you accept that Lister is 25, then the year 2077 minus 25 means he was born in or about 2052]. The DNA Modifier is also incorrect in this episode by saying that Lister's species is "male, 23rd century human". This totally contradicts the entire premise of the episode 'Ouroboros' which shows the infant Lister being abandoned in The Aigburth Arms, Liverpool, in November 2155 (=22nd Century).