
Oh come, all ye faithful - S1-E12
Continuity mistake: When Miranda's boyfriend comes from the shower, the green towel is covering his shoulder or not, depending on the shot.

Oh come, all ye faithful - S1-E12
Continuity mistake: After Miranda has had sex, her green sheets change to grey.
Answer: A popular brand of sexual lubricant. See http://www.k-y.com/index.jsp.
J I Cohen