Yeah, I caught that myself having seen the episode countless times, but it was the same girl, so I'm sure it passed right by casual veiwers of the Sunday Night movies back in 1973.

The highlight of this one for me is when Nora mocks Jerry's proposal of marriage to Jean in those octagon-shaped sunglasses way too big for her face: "Dahling...As I lie here awake...."

"Oh, that was a classic" --- indeed! HAHAHAHAHAHAHA

that is a very good one. you can also see her on the street a little earlier in the scene, while they are riding in the cart.

Would you call that a "double take"?

Hey, somebody had to do it!!

Everyone is forgetting the obvious, it was the Double-Mint twins.

Besides the "Dahling, as I lie here awake..." dramatic improvisation, another good line from Nora Chandler is when Mr. Parks points to his head and says "You can't get a search warrant for what's in here."
Nora replies, "You couldn't get BUS FARE for what's in there!"