Showtime has announced that it is renewing half-hour comedies Weeds and The Big C, which will return for their seventh and second seasons, respectively, at some point in 2011. “The unprecedented viewership for both The Big C and Weeds proves that audiences love these shows as much as we do,†Showtime president of entertainment David Nevins said. “There are definitely more comedic adventures in store for these fascinating, complex women.†Good news for whatever company provides the iced coffee on the Showtime lot.