Will on Ice - S1-E11
Continuity mistake: When Will and Grace stand in the kitchen discussing the grey hair, the back of cereal packet (on the counter) faces the camera, but for one shot the front of the packet is showing. (00:00:35)
Will on Ice - S1-E11
Continuity mistake: As Will collects the paper from outside the door, We see Grace sitting at the table, a pad and pen on the table in front of her. In the next shot the pen has vanished, and a newspaper has appeared next to the pad. (00:01:30)
Will on Ice - S1-E11
Continuity mistake: When Will and Grace play the "love her, hate him" game, they open a magazine up. In the next shot you can tell it's on a different page, because the layouts have changed. (00:05:45)
Will on Ice - S1-E11
Continuity mistake: When Karen arrives at work, she places her bags on the chair, and then puts them down onto the floor. In a following shot they are back on the chair, then in another shot they're gone again. (00:07:55)
Will on Ice - S1-E11
Continuity mistake: When the gang are at Champions on Ice, Karen gets out a bottle of champagne and a glass a starts pouring herself a drink. As the shots change, the bottle and glass keep swapping hands, even as she is still pouring. (00:13:45)
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.
The Unsinkable Mommy Adler - S1-E13
Continuity mistake: In the restaurant scene, after Will grabs a breadstick and Grace snatches it from him, the position of the breadsticks in the bowl, in the centre of the table, constantly change through the whole scene. (00:33:50)
The Unsinkable Mommy Adler - S1-E13
Continuity mistake: When Grace is reading through her diaries, through all following shots in the scene the position / location of the yellow, furry diary on the floor keeps changing. (00:37:40)
Big Brother is Coming (1) - S1-E14
Continuity mistake: When Will is throwing ties from the closet, we see that they all land on the floor. The angle changes, and one has now appeared on the bed. (00:08:50)
Big Brother is Coming (1) - S1-E14
Continuity mistake: When Will tosses all the ties out of his cupboard, the tie which landed on the end of his bed keeps changing. In some shots it's a blue and black stripy tie, in others it's a yellow and brown stripy tie. (00:08:50)
Big Brother is Coming (2) - S1-E15
Continuity mistake: Several parts of the mess in Will's apartment keep switching places. Look at the glasses and napkins. (00:20:45)
Big Brother is Coming (2) - S1-E15
Continuity mistake: The chess pieces on Will's table keep moving around, despite the fact the game is over. (00:30:25)
Plot hole: The apartment block where Will lives supposedly has the same layout for each floor of the building. Yet in "Yours, Mine or Ours" the room 12D is seen as located right in front of the elevator, the same location as Will's apartment door - however Will's apartment is always seen as 9C.
Continuity mistake: As Grace unravels the scarf from around Jack's neck, the clothes in her suitcase on the table change between shots. (00:01:45)
Continuity mistake: After letting Campbell out, Grace pulls the white blind down the door, and it stops about halfway down the door, and gets stuck, and is still rolled at the bottom. In the very next shot, the white blind is now unrolled all the way down perfectly. (00:07:00)
Answer: A history of the game can be found at http://www.fast-rewind.com/bacon.htm.
J I Cohen