Kushell has written for network television comedies including The Simpsons, 3rd Rock from the Sun, Malcolm in the Middle, Grounded for Life, American Dad!, Samantha Who?, Suburgatory, Anger Management, and Fam.
In 2015, Kushell joined Bill Prady to co-create The Muppets, which ran for 1 season on ABC Television[1][2][3] and won a Nickelodeon Kids' Choice Award.
[5] In December 2008, he hosted his own online talk show, co-created with his brother-in-law Russell Arch, Anytime with Bob Kushell, on Crackle.
He was also one of the subjects of Maureen Ryan's book Burn It Down: Power, Complicity, and a Call for Change in Hollywood, which examines allegations of sexual harassment against him while on the reboot of The Muppets in 2015.
[8] Paley Center for Media has preserved the first season Salute Your Shorts episode "Sponge Saga" in its New York archive, which had its teleplay written by Kushell.