I don't want to get pretentious, but there's an art to doing sitcoms; you have to make it work in that format.
One of my earliest memories is my father telling me to behave because I'm about to meet and work with the greatest actor of all time. Then this old guy comes out and I was like, 'Pfff, he doesn't look anything like Luke Skywalker, I don't know what my dad is trying to tell me here.'
As a young actor, it's important to see how the greatest in the industry work... diva behavior is never it.