A woman's right to shoes (a.k.a. no shoes, no service) - S6-E9
Continuity mistake: When Carrie arrives at the party she is given a drink with a miniature baby decoration on the right side. A shot later it's on the left side.
The post-it always sticks twice - S6-E7
Continuity mistake: When Charlotte and Sam read the Post-it, in the close-up both of her hands appear on the note; yet in the wide angle Charlotte's hand is on Sam's hand, but not on the Post-it.
Continuity mistake: While drinking with Jerry, Sam toasts with her right hand, but a shot later she holds the drink with her left.
Continuity mistake: When Miranda arrives late at her meeting, the position of her right hand is not continuous between shots.
Continuity mistake: During breakfast, Sam twirls her fingers around and gestures at Carrie, then lowers her hand. From the opposite angle it's raised.
Revealing mistake: When Sam and Jerry watch the billboard, a blue car passes by and the driver slows down and stares at the filming.
Continuity mistake: Charlotte's cocktail turns around between shots, check the apple slice. (00:08:01)
Lights, camera, relationship - S6-E5
Visible crew/equipment: Set lights and screens are reflected on both helmets' surfaces. (00:20:33)
Lights, camera, relationship - S6-E5
Continuity mistake: When Sam shows the newspaper with the Smith Jerrod news, she holds it from the lower corner. A shot later Sam is holding the middle part of the newspaper.
Lights, camera, relationship - S6-E5
Continuity mistake: When Steve kisses Miranda goodbye his hands are either on her cheeks or on her neck depending on the shot.
Lights, camera, relationship - S6-E5
Continuity mistake: Sam hands Carrie a paper with an article about Jerry. Carrie holds it with both hands, but the left one disappears in the close-up shot.
Answer: I'm a long-time fan of the show, having re-watched it many times, and I definitely remember slightly different dialogue at the end of that episode than what's on my DVD. I'm afraid I have no idea why this change might have been made or any other info, but you're not insane.
Purple_Girl