THEATER GUILD · Th e Th eater Guild, the oldest producing organization in America, has been producing Broadway shows since its inception in 1919. Although it has been fairly inactive in recent years, its amazingly long history has been marked by incredible highs and incredible lows. All producing organizations of note have presented great plays and all have produced fl ops, but the Th eater Guild has had many close calls when its existence depended on the success or failure of a single production.