Original sentence: Gary Larson, Jordan Nagai, the Smothers Brothers, Peyton Manning, Eli Manning and Cooper Manning, Bob Costas, Chuck Liddell and Angela Bassett are to guest star in yet to be announced episodes
Edited sentence: " All three Mannings recorded their parts in New Orleans under the supervision of The Simpsons writer Tim Long.Gary Larson, Jordan Nagai, Bob Costas, Chuck Liddell and Angela Bassett are to guest star in yet to be announced episodes.Jean said having the Smothers Brothers on the show was "a dream come true.Jean said the staff liked Peyton's work on Saturday Night Live, "and Cooper is really funny, too.The Smothers Brothers, Peyton Manning, Eli Manning and Cooper Manning will guest star in an episode in which Bart is jealous that Lisa has a little sister and fantasizes that he has a brother.The episode will air in December 2009.They were really good [in the episode]