"Someone to Watch Over Lily" is the 20th episode of the American comedy television series, Modern Family's second season and the 44th episode overall. It was originally aired on April 20, 2011. The episode was written by Bill Wrubel and directed by Michael Spiller.In the episode, Mitchell and Cameron are looking to assign legal guardians for Lily in case anything were to happen to them, and are secretly assessing their family members.