A Mother, a Child, and a Blue Man's Backside - S1-E18
Continuity mistake: When the guidance councillor holds up the leaflet for Caltec, where she holds it changes between front and rear camera angles. Note the distance from the top of the leaflet. (00:09:10)
A Mother, a Child, and a Blue Man's Backside - S1-E18
Continuity mistake: When Sheldon is shown the M.I.T leaflet, the way it's displayed to him changes between shots. (00:09:20)
Gluons, Guacamole, and the Color Purple - S1-E19
Continuity mistake: When Sheldon startles Connie in bed, Connie has her hands up by her head. Shot changes and her hand is now across her chest. (00:15:20)
A Dog, a Squirrel, and a Fish Named Fish - S1-E20
Continuity mistake: When Pastor Jeff is talking about "Love Thy Neighbour," the Bible is open in his hands, apart from one shot where it closed. (00:13:20)
Summer Sausage, a Pocket Poncho, and Tony Danza - S1-E21
Continuity mistake: When George Sr. is cracking the claw of the lobster, he goes from holding the cracker to holding a fork instantly. (00:16:38)
Summer Sausage, a Pocket Poncho, and Tony Danza - S1-E21
Continuity mistake: When Missy tries the Lobster for the 1st time, the way she holds her fork keeps changing between shots. (00:16:50)
A High-Pitched Buzz and Training Wheels - S2-E1
Continuity mistake: When George gets out of bed to go and comfort Mary at the window, he puts his hand on her shoulder. When the camera changes to a view from the front, the hand on her shoulder has gone. (00:09:50)
A Crisis of Faith and Octopus Aliens - S2-E3
Continuity mistake: Just after the opening titles, Mary is preparing a salad when the phone rings. Between the shot of Mary and Connie and the shot of just Mary, the position of the items in her hands changes rather drastically. (00:01:50)
A Crisis of Faith and Octopus Aliens - S2-E3
Continuity mistake: When the church receptionist is talking to Mary about life being precious, she is holding the mug differently in different shots. (00:04:50)
A Crisis of Faith and Octopus Aliens - S2-E3
Continuity mistake: Sheldon asks if his dad checked Mary for ticks. When he does this, he is covering his mouth and nose with the collar of his shirt. When we see George from behind Sheldon, Sheldon isn't covering his face; then, as we see Sheldon from the front again, he lowers his shirt from round his mouth. (00:14:50)
A Crisis of Faith and Octopus Aliens - S2-E3
Continuity mistake: Towards the end of the episode, Mary takes a slice of pizza and takes a bite, holding it with two hands. When the shot changes to an over-the-shoulder shot from behind Mary, you can see her left hand has no pizza in it, unlike the shot from the front. (00:15:30)
A Financial Secret and Fish Sauce - S2-E4
Continuity mistake: At Tam's, the food around Sheldon's mouth changes size and position between shots. (00:10:30)
A Research Study and Czechoslovakian Wedding Pastries - S2-E5
Continuity mistake: At the dinner table, when discussing the research study, Missy switches from eating to arms folded several times between instant cuts. (00:04:10)
A Research Study and Czechoslovakian Wedding Pastries - S2-E5
Continuity mistake: When driving back from the second study, Missy is looking out of the window when Mary says something about going out to eat. When the camera angle has changed to show the whole car, she is now looking past Sheldon into the car. (00:15:40)
Seven Deadly Sins and a Small Carl Sagan - S2-E6
Continuity mistake: When Gene is showing Mary the poster, he stops at the bottom of "Heck House" before revealing the rest of the poster. When the shot changes, part of the "Gene Lundy" wording is now visible, and then he goes on to show the rest of the "Gene Lundy" part. (00:09:50)
Carbon Dating and a Stuffed Raccoon - S2-E7
Continuity mistake: Sheldon places his membership cards down on a flat surface. He puts Radio Shack first, followed by Star Command, almost entirely covering it, leaving just a small section of red along the top. When the shot changes to a wide-angle one, the Star Command card has moved down and more red is visible above it. (00:01:00)
An 8-Bit Princess and a Flat Tire Genius - S2-E8
Continuity mistake: Near the end, when Hershal is talking to George over a beer, the position of the two empty spots in the pack keeps changing. In some shots, the 2 beers are taken from one side, and in others, one is taken from each side. (00:15:30)
A Stunted Childhood and a Can of Fancy Mixed Nuts - S2-E10
Continuity mistake: When Paige arrives for a sleepover, Mary closes the door, and her hand is by her waist. When the shot changes, her hand is now down against her leg. (00:04:10)
A Stunted Childhood and a Can of Fancy Mixed Nuts - S2-E10
Continuity mistake: When we see Missy and Paige in the bedroom, Paige has something in her hands that swaps position between two consecutive shots. (00:07:10)
A Stunted Childhood and a Can of Fancy Mixed Nuts - S2-E10
Continuity mistake: When Missy and Paige are tying George's feet together, the position of their hands and the rope is constantly changing between all the camera angles. (00:08:20)
Answer: Some people just have a dislike for someone that can't be explained. Could be as simple as the way he's dressed.