May I Trim Your Hedges? - S3-E3
Continuity mistake: Kevin divorces his first wife in Season 3, Episode 3. But in Season 10, Episode 12, he tells Veronica that he will have to find her first to get a divorce before he can marry V.
Revealing mistake: When the corpse of the old woman is laid on the bed, you can see her stomach contracting and expanding under the blanket.
Continuity mistake: During Frank's discussion with the candidate for mayor, there's a bus leaving the stop, it's not the same vehicle. In the first shot, it's 1717, with no advertisement or line number on the rear, while in the second it's 1691 with an ad above the licence plate and the number 82 on the display. (00:19:20)