The Bat Jar Conjecture - S1-E13
Corrected entry: Sheldon is very particular about sitting in his spot and not allowing anyone else into his spot. We learn later on in the series that he has been this way since Leonard moved in. However at the very end of this episode, we see Leonard sat in Sheldon's spot and Sheldon sat in the arm chair. (00:19:00)
The Bat Jar Conjecture - S1-E13
Corrected entry: Towards the end of this episode, Raj answers a question by buzzing in with Leslie Winkle sat next to him, and he answers. I though he couldn't talk to women or around women? Is this a mistake?
The Bat Jar Conjecture - S1-E13
Corrected entry: When the guys are practising for the Physics Bowl and they are sitting across from Penny, Leonard is sitting in Sheldon's seat, which Sheldon would never allow.
Correction: In most cases, this would be true. But given the way things were set up, he had to pick a new, temporary spot for the practice. It's likely that their living room setup is too complex to change just for a short amount of time, which is why the practice area was set up as it was. Sheldon chose a spot related to the practice area so he would be comfortable, just like he chose a new spot when the gang went to the north pole.
Correction: At the start of the scene, Sheldon attempts to sit in his spot, but Leonard doesn't let him, because his Physics Bowl trophy is sitting there and then Leonard moves slightly onto Sheldon's spot to make fun of him using the trophy. Presumably, he is just sitting on the arm chair because Leonard wouldn't move and he is just sitting in that seat reluctantly.
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