SNEAK PEEK: Season Finale – Operation P.R.O.M. November 9, 2010 Adult Swim Share Tweet Pin Subscribeshares Released on Adult Swim is a teaser of the Venture Bros. Season Finale of “Operation P.R.O.M.” The Season Finale will be an hour-long extravaganza and will air on Sunday, November 21st at 11:30pm on Adult Swim. Operation: P.R.O.M.PreviewSeason FinaleThe Venture Bros.The Venture BrothersVenture Brothers Related Posts Why Funko Pop Toys Are the Hottest Collectible Right Now Why The Venture Bros. TV Show is Perfect for Adults Venture Bros. Panel and Signing at NYCC 2016