Continuity mistake: At the beginning of the episode Will takes two bottles of water from the fridge. He unscrews the lid off them both and picks them both up. In the next shot he picks the second one up again. (01:03:20)
Visible crew/equipment: When Will walks through the door, Grace picks up a ball of paper and hits it over to him with a racket. As she does, a boom is visible above her. (01:04:10)
Continuity mistake: When April enters the room, she puts her grey jacket and red bag on the couch. When Will leaves the room, the jacket and bag have disappeared. (01:05:55)
Continuity mistake: When Will and Grace sit on the rocks in the meditation room, at the end of the episode, the position of Grace's coat changes between each shot. (01:22:00)
Continuity mistake: When Will introduces Grace to April, the pencils in Grace's hair changes between shots.
Answer: A history of the game can be found at http://www.fast-rewind.com/bacon.htm.
J I Cohen