ABC Family announced an ambitious summer slate Monday that includes a series about being switched at birth, Raven-Symoné's headlining comedy and the return of Pretty Little Liars.

ABC Family picked up three new series Monday, including a comedy starring longtime Disney star Raven-Symoné.

Five new prime-time TV series premiere the week of Monday, Oct. 1 (all times Eastern): ''Aliens in America'' What: A sitcom that mines humor from the miseries of adolescence as well as Am...