This document summarizes some key conventions of sitcoms. It explains that sitcoms feature recurring characters in different comic situations in each episode. While characters may change temporarily, they typically return to their original situations. Sitcoms usually have upbeat title sequences with credits and introduce the episode storyline. They typically only use one or two sets, like a house or restaurant. There is often no live studio audience, though some sitcoms do incorporate one. Examples given are The IT Crowd and The Office, which follow conventions like limited sets and title sequence elements.