First episode to feature a Telepathic Conversation.
Mary says that she works at the law firm "Douglas, O'Halloran and Stamp". These are the names of the three people who played the Kryptonian villains in Superman (1978), Superman II (1980) and Superman II: The Richard Donner Cut (1980). Sarah Douglas, Jack O'Halloran and Terence Stamp.
First time Marshall says his catchphrase "Lawyered."
Three of the main leads spouses' feature on the show. Alyson Hannigan's (Lily) husband, Alexis Denisof plays Robin's boss, Sandy Rivers. Neil Patrick Harris' (Barney) partner David Burtka plays Lily's High School boyfriend, Scooter/Bill. 'Cobie Smulder''s (Robin) husband, Taran Killam plays Gary Blauman, Barney's colleague.
Ted and Marshall delight in mocking Robin's co-anchor Sandy Rivers due to a regular segment of his where he reads the news aloud from area papers. This is a joke on New York 1s Pat Kiernan and his daily on-air "In the Papers" feature.