Watch on Soap2day. Smosh: The Sitcom is a live streamed parody of your classic multi-cam sitcom but the cast is continually surprised by last minute line changes, prop mishaps and improvised bits chosen by the audience! If they break or make a mistake, they get replaced by their double - creating a rotating cast of characters and annihilating the show. Can the cast keep the show on the rails or will the viewers help wreck this show?