"Burt Rocks" is the tenth episode of the first season of the sitcom, Raising Hope.
Her most recent television role was that of Charlotte Tilden during the 1992-93 season of the sitcom "Roseanne."
"Decision 3012" is the third episode of the seventh season of the animated sitcom Futurama.
She then appeared in two episodes of the fourth season of the Australian sitcom Hey Dad.
Letterman also made an uncredited appearance in the first episode of the third season of the sitcom The Nanny.
She appeared in the first season of the short-lived sitcom Hello, Larry.
One day, during the fifth season of the sitcom: "I was too sick to go on.
This is the eight season of the American sitcom, My Three Sons.
"31st Century Fox" is the twelfth episode of the seventh season of the animated sitcom Futurama.
He is best known for his role as Austin Warren during the first two seasons of the 1990s sitcom, In the House.