The parallel between Janice changing her name and Harpo changing his is brilliant

Close to the end of the show, Tony suggests to Janice that Harpo should move back in with her since she now lives in a big house. Janice then says that Harpo changed his name to Hal.

Just like Janice changed hers to Parvati to distance herself from Livia.

"It's something else you threw away of mine."