NEW YORK >> The YouTube channel for the popular children’s television show "Sesame Street" is back online after hackers forced its shutdown for a day by loading X-rated material.

"Sesame Street" Executive Producer Carol-Lynn Parente said Monday that YouTube had taken the channel down Sunday after noticing the racy material. The channel usually carries new and vintage clips from the preschool program.

Parente says it appears that the X-rated videos were online for less than an hour and that "Sesame Street" had received no viewer complaints.

She says, "We have great hopes that it was found out" before young viewers could see the X-rated material.

YouTube says it counsels clients to adopt tougher security to avoid hackers. The channel resumed at around midday Monday.