NEW YORK -- The PBS Kids Sprout network has fired the host of "The Good Night Show," after learning she had appeared in videos called "Technical Virgin."

Melanie Martinez is a stage actress and the mother of a toddler, and appeared in the videos seven years ago.

In the two "Technical Virgin" videos, which were made before Martinez landed the children's show job, she spoofs public service announcements about how young women can keep their virginity.

Martinez had alerted network officials about one of the "Technical Virgin" videos late last week and she was taken off the air.

Network President Sandy Wax said it was determined that the dialogue in the videos was "inappropriate" for Martinez's role as a preschool program host. A notice on the PBS Kids Sprout Web site said the videos may undermine her character's credibility with the audience.

Airing for three hours each evening, "The Good Night Show" airs soothing stories and cartoons designed to get an audience of 2- to-5-year-olds ready for bed. Each night, Martinez guides a puppet character into dreamland.

The network said Martinez had been important part of their network and that they were disappointed that they had to make the "difficult decision" to let her go.