Tennessee Racing
Formerly Stewart Fan
I'm not really worried about that stuff. I try not to overthink sitcoms. That seems to be the best way to view them.
As much as I loved Friends, that show constantly contradicted itself. They changed when the characters met about 6 times throughout the show. One episode Chandler can't talk to pretty girls and the next he's flirting with a girl Ross likes. The Big Bang Theory is really bad about that kinda thing as well. Remember when in the first season they said Sheldon was allergic to cats? Then they did an episode where he has 15 cats with no mention of his allergies.