Continuity mistake: At the start when Jack and Karen are sitting at the table outside his apartment, during the scene the spray bottle, cloth and phone on the table keep on swapping places. (00:05:20)
Continuity mistake: When Grace comes in with all the bags of items she stole from Leo's apartment, she has a golf caddy bag on her back which instantly vanishes during shots, without her actually removing it. (00:08:30)
Continuity mistake: After Jack drinks some of the drink Karen gave him at the restaurant, and Will tells him "he swallowed the little plastic sword", Jack puts his hand on his chest and begins to cough but in the next shot his hands are down and he is sitting casually. (00:19:10)
Continuity mistake: Will, Jack and Karen join Grace and Leo at their table in the restaurant, and after they have all sat down you can see that Jack opens his menu twice between shots. (00:21:55)
Continuity mistake: When Grace is sitting on the sofa looking at her Wedding album, the ice cream tub beside her rotates itself between shots. (00:16:45)
Continuity mistake: When Grace is in the AA meeting getting the free donuts, the donut and napkin she holds keeps swapping hands and then a little later when she is talking to Val, the amount of donuts and napkin she holds changes too. (00:03:10)
Continuity mistake: When Grace is talking to Val at the AA meeting room, Val's arms keep changing from outstretched, down or crossed. (00:03:30)
Continuity mistake: When Karen and Rosario enter Jack's office and put the Cher doll down on his desk, the boa that's on the doll is falling off the shoulders. A few shots later the boa is back in perfect position around the dolls shoulders, though no-one touched it. (00:11:40)
Continuity mistake: When Will and Grace come back from the gym they go straight to the kitchen. Grace has a bottle of water, and she unscrews the cap and then picks up a sachet and starts pouring it in the water. But then in the next shot she is still unscrewing the bottlecap. (00:00:25)
Continuity mistake: At the start when Will and Grace are in the kitchen, when Grace goes to the fridge her bottle of water sitting on the counter rotates itself between shots. (00:01:00)
Will & Grace & Vince & Nadine - S7-E7
Continuity mistake: When Grace compliments Will for the chicken at dinner, in one shot she puts in bone down on her plate, then in the next she is still chewing it and then it is back down again. (00:09:05)
Will & Grace & Vince & Nadine - S7-E7
Continuity mistake: At dinner when Will stands up from the table, as Nadine is saying she hates him - he throws his white napkin down on the table, by his placemat. In the next shot it has disappeared. (00:10:50)
Will & Grace & Vince & Nadine - S7-E7
Continuity mistake: When Jack retrieves the dinner plate of food from the oven, when he brings it back to the table and sits next to Will, he puts the plate down and it have a foil covering on it. But in the next shot he begins to eat from the plate, with the foil instantly off (sitting on the table) and Jack having not removed it. (00:12:10)
Saving Grace, Again (1) - S7-E8
Continuity mistake: In the coffee house scene, with everybody sitting at the table talking about Grace going back to dating - there are two muffins on the table, and by the end of the scene (instantly between shots) a bite appears in the muffin in front of Jack. (00:02:10)
Saving Grace, Again (2) - S7-E9
Continuity mistake: When Karen and Jack are in the Peninsula Hotel, when Margaret, the receptionist rings the bell after giving Karen her suite card, there is nothing on the counter. In the next shot there are papers sitting on the desk right beside the bell. (00:03:35)
Saving Grace, Again (2) - S7-E9
Continuity mistake: When Rip throws the confetti and it lands all over him and the Out TV executive, the amount and position of it, on their clothes, differs between shots during the scene. (00:07:15)
Answer: A history of the game can be found at http://www.fast-rewind.com/bacon.htm.
J I Cohen