At one point in Dogs Don't Talk, Ben is groggy from watching old 24 episodes all night.
In Twelve Days, Father Geek gives Terry the opportunity to copy top secret footage, but warns him that if he ever hears of it again, he'll have to report Terry to people who would do things to him that would make Jack Bauer throw up.
One recurring segment on the The Electric Company (2009) was a parody of 24. The segment featured a dog named "Jack Bowser" who would have to read a sentence twice within 24 seconds to escape a gimmicked room before it exploded. He would always escape just in time.
In a sketch on Sesame Street, The Count watches this show on television. It takes place in 24 seconds, and he counts each second as it happens. The series stars a Muppet caricature of Jack Bauer, who spends the 24 seconds trying to pull himself up from the side of a cliff. At the end of the show, it is revealed that he is hanging only a few inches off the ground, so he drops down and walks away.
The episode "24 Minutes" is a spoof of the series, and includes guest appearances by Jack and Chloe.
In "MyPods and Boomsticks", Moe shows Homer a 24expy featuring a Middle Eastern terror suspect being interrogated, which convinces Homer that the family of Bart's new Muslim friend may be up to no good.