The Cartoon Network's Adult Swim block has picked former CBS series "Pee Wee's Playhouse," the channel said Monday. The late-night network purchased the rights to all 45 episodes of Paul Reubens' quasi-children's show, which aired from 1986 to 1991. CBS cancelled the series after Mr. Reubens was arrested in an adult theater and charged with indecent exposure. Since, reruns of the series have been rare. Adult Swim said many of the episodes have not been aired since their original run. Adult Swim will launch the series July 10.