The Big Sistah Sans Soul Episode - S1-E7
Visible crew/equipment: When Mona and Miles get back to Mona's apartment after dancing at the club, just as Mona mentions smuggling crab legs in her purse, in the next shot the unfinished edge of the hallway set wall is visible at the left side of the screen, so we can see Mona's apartment. (00:09:40)
The Big Sexy Shame Episode - S1-E18
Visible crew/equipment: At the start of this episode, when Dee Dee walks into Mona's apartment, the shadow of the moving microphone/boom pole can be seen on the door as it closes. (00:00:01)
The Big 'I Have a Dream' Episode - S1-E20
Revealing mistake: After Mona has the second dream she rushes into the living room, and when she pulls the blanket off Spencer she is shocked that he's completely naked, but we can see the actor is actually clothed when he gets up to get dressed. (00:10:55)