“Sexual orientation and gender identity instruction often entails a discussion concerning an individual’s pattern of emotional, romantic and sexual attraction,” the five GOP senators wrote. “Parents all over the country have rightfully expressed outrage over its inclusion in the classroom.”

The senators are seeking a reply to their request by May 18.

“In light of parents raising legitimate concerns on sexual orientation and gender identity content on their children’s TV shows, we expect the Board to fulfill its responsibility in updating the TV Parental Guidelines to reflect these concerns,” the letter continued.