Oh, I'm quite aware of the difference in both style and substance. What I'm not aware of is how that relates to my point that a character can be as well developed in a 2 hour movie as they can be in 7 years of a TV show. At no point did I even mention sitcoms. That's all on you.

I expanded it here:
If you develope a character in only 2 hours in a TV show no show would last beyond one season. Character development over time is main element in keeping the audience returning. Exploring a character psyche is just as important to a veiwer as the story developing around them. It's art imitating life because the character grows and learns just as we do in real life. It gives the audience more of a chance to bond with said character(s).
A sitcom developes it's characters over one or two eps and the characters never change beyond that, just the situations they're in does.