A Patch, a Modem, and a Zantac - S1-E6
Continuity mistake: When Sheldon is lying on the sofa, his position changes several times. Note his shirt sleeve in relation to the edge of the cushion he is lying on. (00:12:50)
A Patch, a Modem, and a Zantac - S1-E6
Continuity mistake: When Sheldon is doing the maths for NASA, he taps the chalk on the board twice, leaving two dots. These dots disappear in subsequent shots. (00:14:50)
A Brisket, Voodoo, and Cannonball Run - S1-E7
Continuity mistake: When George Jr confronts Sr about looking for a brisket recipe, Sr has the box closed in one hand in one shot and open with 2 hands in another. (00:06:10)
A Brisket, Voodoo, and Cannonball Run - S1-E7
Continuity mistake: The root George Sr is buying is different to the one he hands the shopkeeper. Note the thickness. (00:10:15)
Cape Canaveral, Schrödinger's Cat, and Cyndi Lauper's Hair - S1-E8
Continuity mistake: When George Sr. goes to wake Sheldon up, we see Missy lying on her bed with her leg stuck out and uncovered by the duvet. When we see George closing the door, Missy's leg is now covered by the duvet. (00:05:55)
Cape Canaveral, Schrödinger's Cat, and Cyndi Lauper's Hair - S1-E8
Continuity mistake: Missy asks if she can dye her hair orange. When she does this, she has a section of hair either in front of or behind her shoulder, depending on the angle of the camera. (00:08:20)
Cape Canaveral, Schrödinger's Cat, and Cyndi Lauper's Hair - S1-E8
Continuity mistake: Mary tells Missy that her hair isn't changing colour. Missy then proceeds to sulk and has her spoon in her dish. The camera changes, and now she is holding the spoon upright. (00:08:20)
Cape Canaveral, Schrödinger's Cat, and Cyndi Lauper's Hair - S1-E8
Continuity mistake: When Sheldon says that George Sr gives off a lot of heat, George's hands change position. He has 1 on top and 1 underneath the duvet in the first shot, and both on top in the second shot. (00:14:50)
Spock, Kirk, and Testicular Hernia - S1-E9
Continuity mistake: When George asks Sheldon to go help his brother with his homework, the way Connie is holding her beer bottle changes between shots. Note the label. (00:01:10)
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: When Sheldon is given the necklace, the way he holds it changes between shots. It goes from one hand to two. (00:07:50)
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: After saying grace, Sheldon's mom puts down her glass twice. (00:11:32)
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: When Sheldon picks up the string bean and is looking at it, the size of the bean changes. Note its length. (00:13:50)
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: While the teachers are chatting, the PE teacher is grabbing his glass with the left hand. A shot later, the glass is suddenly on his right hand.
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: When the teachers are having a drink, the bottle cap on the table moves around between shots.
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: When the three teachers are drinking, the glass that the woman on the right is holding disappears between shots.
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: When the teachers are drinking, the woman on the left has her right index finger pointing out. From a wide angle, all fingers are extended.
An Eagle Feather, a String Bean, and an Eskimo - S1-E10
Continuity mistake: When the Principal catches all teachers drinking, the woman on the left has a severe, serious look. A shot later from a different angle, she is suddenly laughing.
Demons, Sunday School, and Prime Numbers - S1-E11
Continuity mistake: When Sheldon is conducting a research project and asks Ms Hutchingson what her religion is, his arm goes from raised to lowered between shots. (00:11:40)
Demons, Sunday School, and Prime Numbers - S1-E11
Continuity mistake: When Sheldon meets Ira, he is holding a pen which disappears a shot later.
Demons, Sunday School, and Prime Numbers - S1-E11
Continuity mistake: When Sheldon is in bed, he is holding the bible slightly upwards. A shot later, it's down, lying against the sheets.
Answer: Some people just have a dislike for someone that can't be explained. Could be as simple as the way he's dressed.