Continuity mistake: When Jack finds out that Grace doesn't know who Steven is, he picks up a blue tassel - twice between shots. (00:28:15)
Continuity mistake: When Grace gets out all the videos which hint Will's 'secret', she puts the bag on the table, but in the next shot it's in her hand. Between these same shots a sticker also appears on one of the video cases. (00:29:50)
Where There's a Will There's No Way - S1-E7
Continuity mistake: The bites in Graces chocolate donut change. (01:05:35)
Where There's a Will There's No Way - S1-E7
Visible crew/equipment: When Karen enters the office with clothes and bags, Grace says "Oh Karen, you didn't have to buy me clothes," and above her is the whole boom dipping into view. (01:05:40)
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)
Where There's a Will There's No Way - S1-E7
Continuity mistake: When Grace is cleaning the table with the playing cards on it, all the cards are separated in piles on the table, but in the next shot they're all in one big messy pile. Grace holds a small piles of cards, and never touches the big messy pile, then in the next shot she picks somehow up all the remaining cards in one neat pile. (01:21:05)
Where There's a Will There's No Way - S1-E7
Revealing mistake: When Grace slams into the side of the elevator buttons, they all light up except 4 (which is supposed to happen), but 5 lights up after she moves away from the panel. (01:22:30)
Continuity mistake: When Karen is sitting at the desk, with a fistful of pencils, the pencils often change position in her hand. (00:01:40)
Continuity mistake: When Will is sorting his CD's, Grace enters the flat and puts her bag on the sofa with the back facing out and it is all black. When Will gives Grace a glass of wine, the front of the bag is facing out, with the flower design. (00:05:10)
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)
Continuity mistake: When Grace is putting on the waterworks in front of the landlord, to get a lower cut on the apartment, the bowl of tassels on the table is repeatedly full/half full, and tassels jump in and out of the bowl. (00:16:00)
Continuity mistake: At the end of the ep., where Will and Grace play a board game, the red plastic cards on the board change their position many times, as does the paper money and the dice. (00:18:45)
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)
The Big Vent - S1-E9
Continuity mistake: After giving Will and Grace his scripts to read, Jack places his drinks bottle on the table and walks over to the door. When he reaches the door he suddenly has the drinks bottle in his hand, although he left it on the table across the room. (00:47:00)
The Truth About Will & Dogs - S1-E10
Visible crew/equipment: Jack and Karen are sitting on the couch, and Grace says, "come on, let's go." There is a boom mic visible at the top of the screen, it rotates towards Grace. (00:14:38)
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 Truth About Will & Dogs - S1-E10
Visible crew/equipment: In most of Season One at least (choosing a specific moment here), Will and Grace have a large ornamental silver ball in their living room, which always reflects the studio lights and the fact that there is no fourth wall to the apartment. (00:27:35)
The Truth About Will & Dogs - S1-E10
Visible crew/equipment: When Grace is trying to persuade Will to come out to the cinema with her, the boom mic is visible at the top of the shot. (00:34:35)
The Truth About Will & Dogs - S1-E10
Continuity mistake: When Karen spills her martini on the floor, she places the beige skirt she was holding down on the pile of clothes she was sorting out. In the next shot the clothes pile is arranged differently. (00:36:40)
The Truth About Will & Dogs - S1-E10
Continuity mistake: When Karen was at Will and Grace's flat with Jack babysitting the puppy. She puts her cocktail glass down on the table and leaves, but when Will and Grace come back from the movie there is no glass on the table. (00:36:50)
