Midnight at the Concord - S2-E5
Continuity mistake: When Benjamin is driving Midge back from the Catskills to New York City, he briefly is driving on the left-hand side of the two-lane country road (which is not a one-way).

Directed by: Amy Sherman-Palladino
Starring: Alex Borstein, Rachel Brosnahan, Michael Zegen, Marin Hinkle
Midnight at the Concord - S2-E5
Continuity mistake: When Benjamin is driving Midge back from the Catskills to New York City, he briefly is driving on the left-hand side of the two-lane country road (which is not a one-way).
Continuity mistake: When Midge is doing her makeup routine, she doesn't have eye liner, then she does, then she doesn't.
How Do You Get to Carnegie Hall? - S4-E8
Lenny: What are you wearing?
Midge: I'm wearing my show corset.
Lenny: You have a show corset?
Midge: Yes.
Lenny: How is this different from, say, your dentist corset?
Midge: It's much more likely to suffocate me. It's also prettier.
Lenny: Yep. It's always the pretty ones who try to kill you.
Trivia: Jason Ralph, who plays TV producer Mike Carr, is Rachel Brosnahan's (Midge) real-life husband.