Future Nate, with his eye patch, long hair, and gravelly voice, bears a strong resemblance to Snake Plissken, the hero of "Escape From New York" and "Escape From L.A.".
At one point, Ava drunkenly walks in front of a moving car and yells at the driver, "I'm walking here, I'm walking here!" Marty McFly Jr. did the same thing in Back to the Future: Part II.
Spooner's undercover hairstyle looked similar to the wig used on Ryan Wilder's Batwoman cowl.
At 16:50, written at the overhanging banner is -> Prsaadhan toilet -> (Hindi word for toilet, in Devanagri script). There were supposed to be in 1977 London for the finale, it is inexplicable why would a place would put a board with a Hindi word on it in 1977 London but they are in an Indian restaurant so the Hindi language is just decoration or part of the theme of the restaurant.
The episode was mistakenly titled "Back To The Finale Part II" in its script.