HARRISBURG, Pa. -

A son of child molestation convict Jerry Sandusky said Sandusky had a bedtime 'ritual' at the family's central Pennsylvania home.

The Oprah Winfrey Network on Wednesday released a clip of Winfrey's interview with Matt Sandusky, who says he was sexually abused by his father.

Sandusky told Winfrey he enjoyed spending time with the family except when it came time for bed. The full interview airs Thursday at 9 p.m. Eastern.

The network said Sandusky also described grooming, methodical control and manipulation by his father.

Jerry Sandusky is a former Penn State assistant football coach convicted of molesting 10 other boys. He's imprisoned but maintains his innocence.

Matt Sandusky is one of six children adopted by Jerry Sandusky and his wife.

He also described abuse in a documentary called "Happy Valley."