Visible crew/equipment: At the beginning of the scene with Jimmy, Lisa, Matthew, and Beth in Lisa's office a boom mic is visible.
Continuity mistake: When Dave's friends are at the conference table and Joe comes to talk to them, the door to Lisa's office is open. The next shot inside Lisa's office, the door is closed.
Who's the Boss: Part 1 - S4-E12
Other mistake: The whole time Beth is typing the computer screen never changes, it actually looks to be some sort of start screen.
Who's the Boss: Part 2 - S4-E13
Continuity mistake: After Lisa puts out the fire, a sandwich keeps appearing and disappearing from the plate.
Who's the Boss: Part 2 - S4-E13
Other mistake: Robert Hegye's character in the show is called Sal but is credited as Al.
Who's the Boss: Part 2 - S4-E13
Revealing mistake: When Joe's brother punches him you can see that he misses.
Other mistake: When Jimmy leads Dave to the elevator, the door opens as they are headed to it, but no one gets off, and no one hit the button to call the elevator.
Beep, Beep - S4-E16
Continuity mistake: At the end of the scene between Bill, Lisa, and Dave when Lisa is yelling at Bill about lying that they had sex, the person in the booth is seen taking off her headphones twice.
Continuity mistake: When Bill is in Dave's office trying to be funny the coffee mug on Dave's desk changes position a few times.
Continuity mistake: While Max and Lisa are talking about how he likes Beth the person in the booth changes.
Retirement - S5-E21
Continuity mistake: When everyone is at the conference table at the beginning, there is a bottle near Max that keeps changing position.
