I was thinking about another possible inconsistency. I believe there was an episode where Danny says he first met Pam in tenth grade geometry class. Yet in Pal Joey when they flash back to them in fifth grade Jesse is going to the same school. If Jesse was going there wouldn't Pam have been going to that school too? so if she was going to that school too wouldn't they have known each other?

yes that is very true. But Danny may not have met Pam until the 10th grade, even though they were going to the same school all that time. Even in Pal Joey, Danny and Joey didn't really seem to know who Jessie was, he was just sort of there. There's a lot of people I went to school with for years who I know of, but didn't actually meet them until later, that's probably how it went with Danny and Pam.

Another thing the writers didn't think of....

On the episode a few nights ago, where DJ and Kimmy were staying at each others' houses, DJ stopped back home and was wearing one of Kimmy's shirts. It was quite loose on DJ. DJ weighs a good 25 pounds more than Kimmy. That shirt should have been TIGHT on her.