The series will begin its 10th season on the Fox television network this fall.
TBS said it has ordered 15 episodes for its 11th season and its sister station Adult Swim will then present encores of each installment after their initial airings on TBS.
"'American Dad' is a great fit for TBS, a favorite of comedy fans who like smart, irreverent humor with ample doses of biting wit and skewering satire," Michael Wright, president and head of programming for TBS, TNT and Turner Classic Movies, said in a statement Tuesday. "We look forward to welcoming [show creator, writer and voice artist] Seth MacFarlane and the rest of his team as they bring this iconic show to TBS."
"'American Dad' is a brilliantly inventive series, and TBS' desire to platform new episodes demonstrates the enduring power of great and compelling content," Twentieth Century Fox TV Chairmen Gary Newman and Dana Walden said in a joint statement.
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