Every episode's title is taken from a phrase, quote, or lyric from that episode.
Was originally known as Antarctica while in development.
Autistic actors actually auditioned for the role of the autistic Sam. However, the non-autistic Keir Gilchrist was awarded it because he was "best for the role."
The email addresses of the characters have 'jeemail.com' as the email service provider.
"Adélie, Chinstrap, Emperor, Gentoo" (Sam's Self-Soothing South Pole Penguin Chant) wasn't said in the final season, not including recaps.