Lows in the Mid-Eighties (1) - S3-E8
Plot hole: In this episode during the flashback scenes, it is shown to us that Will comes out of the closet during his freshmen year of college during Thanksgiving Break, when they spend the weekend at Grace's Parents house. However in the season 1 episode "William, Tell" Grace claims that Will came out to her at senior year of college during Christmas Break. Quite a difference for such a memorable time.
Lows in the Mid-Eighties (1) - S3-E8
Revealing mistake: At the party it is obvious none of the red plastic cups have drink in them. (00:45:00)
Continuity mistake: When Grace is telling Will about his dad's affair, she mentions that he grabbed the other woman's ass when she brought him a packet of Goobers during the interval. The thing is, she sees them for the first time during the interval, and we see the conversation that follows. The mistress brings him wine, not Goobers, and he doesn't grab her ass.
Lows in the Mid-Eighties (1) - S3-E8
Continuity mistake: When Ellen says to Grace "Okay, what do you mean Will and You have never done it?" the red plastic cup she holds swaps hand three times between shots. (00:45:25)
Revealing mistake: After the opening credits there is a shot showing the house on the island where Karen and Stan live. If you look at the hanging chair, you can see that Karen is sitting in it. But in the very next shot she is in a meeting with Will, in a different outfit. This is a re-used shot from the previous season, which shouldn't be there. (00:04:20)
Continuity mistake: When Grace enters Will's office, while he is spinning around on his new office chair, she goes and puts her black purse down on the desk. In the next shot it is positioned differently. (00:04:30)
Continuity mistake: When Will and Grace are talking to the nun about buying the car off of her, the amount of Burberry scarf showing out of Will's coat is inconsistent with each shot change.
Brothers, A Love Story - S3-E14
Continuity mistake: When Karen reads Stan's will and sees that a third of his money will go to charity, she goes woozy in her chair. In this shot the table is free from loose jewels, yet in the next shot two rings are sitting on the table. (00:10:45)
Continuity mistake: When Will enters the backstage washroom to tell Jack that he can make fun of him on stage, Jack puts the blue flannel in the sink, so that we can't see it. In the next shot the flannel is hanging out, over the sink's edge. (00:17:35)
Continuity mistake: Will squirts Jack with his bottle of water, the water level obviously drops quite a bit, in the bottle. But in the next shots, the bottle is filled right up to the top once again. (00:10:00)
Lows in the Mid-Eighties (1) - S3-E8
Continuity mistake: When Jack invites Pam over to their table to talk, the direction that the label on the champagne bottle faces changes between shots. (00:43:40)
Three's a Crowd, Six is a Freak Show - S3-E10
Continuity mistake: When Grace gets two bottles of beer for her and Mark, she sits down on the sofa with both bottles in her hands, yet in the very next shot one of the bottles has jumped into Mark's hand.
Revealing mistake: Grace has a present for Larry and Joe - a cement handprint decorated with twigs. She made it when she was twelve, and after a couple of decades the twigs in the cement are stick alive with healthy green leaves. (00:30:50)
Continuity mistake: After Will squirts his bottle of water all over Jack, the amount of water on his shirt and face differs through following shots. (00:10:00)
Lows in the Mid-Eighties (2) - S3-E9
Continuity mistake: When Will tells Grace he's gay, the champagne bottle on the table keeps rotating.
Lows in the Mid-Eighties (1) - S3-E8
Continuity mistake: When the guy at Will's party tells everyone the beer has gone, everybody leaves, and the guy puts his plastic cup on the handle sticking out from the keg. In the next shot the cup has suddenly gone, then reappears again in the next. (00:46:40)
Three's a Crowd, Six is a Freak Show - S3-E10
Revealing mistake: Grace's boyfriend has six toes but in closeup shots, when he takes off both socks you can clearly see only five toes on each foot, when they are specifically trying to hide one foot.
Continuity mistake: When Will is talking to Jack and is folding tea towels, he folds the same tea towel twice between shots. (00:01:30)
Lows in the Mid-Eighties (2) - S3-E9
Factual error: When Will and Grace bump into each other in the supermarket in 1986, more recent items and brand names can been seen in the fridges and on the shelves during the scene.
Gypsies, Tramps and Weed - S3-E7
Continuity mistake: When Will, Grace and Jack are having the birthday dinner in the restaurant, in one shot Will picks up his wine glass and commences to drink, yet in the very next shot the wine glass is down on the table.
