Trivia: The episode "Exodus" introduces Mon-El's father Lar Gand. In DC comics, Lar Gand was the birth name of Mon-El.
The Adventures of Supergirl - S2-E1
Trivia: When Cat Grant walks to her office door, she screams out, "Miss Teschmacher!" In Superman and Superman 2, Miss Teschmacher was Lex Luthor's assistant and him screaming her name was his way of getting her to run to him.
Trivia: In the episode "Exodus" Mon-El's mom is played by Teri Hatcher. Teri Hatcher appeared in the hit TV show Lois and Clark: The New Adventures of Superman as Lois Lane.
Trivia: Towards the end while the President (played by Linda Carter, of Wonder Woman TV show fame) is speaking with Kara about Air Force One, she says "you need to see my other jet" as a reference to the Wonder Woman invisible jet.
The Last Children of Krypton - S2-E2
Trivia: The way Superman carries Kara on the bridge is the same as the cover of the comic "crisis on infinite earths".
Answer: For one, it's usually cheaper to film in Vancouver because of the tax breaks. But all the CW Arrowverse shows (with the exception of "Black Lighting") are/were filmed in Vancouver. So it makes it easier and cheaper for sharing set designs, crossovers, etc ("Black Lightning" filmed in Vancouver during its crossover). Originally "Supergirl" wasn't part of the Arrowverse when it was on CBS, but it was too expensive to produce and wasn't reaching the wider audience the CW shows had. So CBS moved it to its sister company, The CW.
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