Factual error: At about 8 minutes in, Grace's ex-husband is talking about flash flooding and water mixing with electricity. He's makes a comment about going up like Gary Gilmore. Gilmore was executed by firing squad and not in the electric chair.
Continuity mistake: When Grace goes into the kitchen at the end of the episode she shuts the door. The next time the door is seen it is open.
Continuity mistake: When Grace and Nadine walk into the house there is a box of laundry detergent in the background facing forwards. When Wade comes in it's turned around.
Jimmy's Girl - S2-E5
Continuity mistake: While Grace and Jimmy are at the pub discussing things, Grace takes away Jimmy's empty beer glass and puts it on the opposite side of the snack bowl. A few minutes later Jimmy reaches for the glass and it's 1/4 full, with ice. (00:20:40)
Jimmy's Girl - S2-E5
Continuity mistake: In the final scene when Grace goes to checkout at the grocery store, she is holding her credit card. The shot changes and now the cashier has her card.
Continuity mistake: When everyone is commenting on Vic's hair at work, he has his hands on his hips. The shot changes and they are no longer on his hips.
Hello, I'm Your Mother - S2-E16
Continuity mistake: In the opening scene Grace's coffee mug keeps changing position.