Television News Showtime renews its 'Weeds' TV series for a third season 05/05/2007 Showtime has announced that the third season of "Weeds" will start Aug. 13, announcing at the same time that Matthew Modine will have a recurring role. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Zooey Deschanel Carrie Fisher Mary-Louise Parker Matthew Modine Elizabeth Perkins Justin Kirk Weeds