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: 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)
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: 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)
Answer: A history of the game can be found at http://www.fast-rewind.com/bacon.htm.
J I Cohen