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.
Continuity mistake: When Rosario walks in on Karen and Beverly fighting on the table, the hairpiece Beverly holds swaps hands between shots. (00:36:15)
Continuity mistake: As Karen and Beverly fight on the snooker table and pull each others toupees off, the black ball on the snooker table keeps on disappearing, reappearing and moving around the table through the scene. (00:35:55)
Continuity mistake: When Karen is about to pot the black ball in snooker, Beverly does a fake sneeze to make Karen loose her concentration. Karen's stick is on the table when she grumbles, but is in her hand in the next shot. (00:35:40)
Continuity mistake: As Karen and Beverly play snooker, and are trying to pot the black ball, the positions of all the little blue cube-stick chalks keep changing. They jump onto the table/onto the tableside between a few shots. (00:35:10)
Answer: A history of the game can be found at http://www.fast-rewind.com/bacon.htm.
J I Cohen