Big Brother is Coming (2) - S1-E15
Continuity mistake: The chess pieces on Will's table keep moving around, despite the fact the game is over. (00:30:25)
The Big Vent - S1-E9
Continuity mistake: When Grace is listening through the vent, she is leaning on a cushion. Between shots the cushion rotates because the stripes on it change from running horizontical to vertical. (00:43:45)
Continuity mistake: As Jack is trying to open the massage table, Karen is sitting waiting: on the small table next to her is a candle. The candle alternates from lit / unlit between a few shots. (00:07:20)
The Truth About Will & Dogs - S1-E10
Continuity mistake: Grace asks Will to watch the dog quickly as she goes to the bathroom. As she puts the dog on the sofa, the position of the wine bottle, wine glasses and cork on the coffee table change between shots. (00:26:40)
The Unsinkable Mommy Adler - S1-E13
Continuity mistake: In the restaurant scene, after Will grabs a breadstick and Grace snatches it from him, the position of the breadsticks in the bowl, in the centre of the table, constantly change through the whole scene. (00:33:50)
Where There's a Will There's No Way - S1-E7
Continuity mistake: Grace puts her chocolate donut down on her pad. It then vanishes, then reappears. (01:06:05)
Continuity mistake: After letting Campbell out, Grace pulls the white blind down the door, and it stops about halfway down the door, and gets stuck, and is still rolled at the bottom. In the very next shot, the white blind is now unrolled all the way down perfectly. (00:07:00)