Jo Frost in ABC's 'Supernanny' Season 7 ; Jo Frost attends afternoon tea at The Peninsula Beverly Hills on January 15, 2020 in Beverly Hills, California.

For some parents, every season is prank season ... Jo Frost rose to fame on the Supernanny UK reality show, but her reality stardom followed decades of practical experience as a nanny.

"There's a lot you don't see," Cathy Webb, who appeared in season 2 of Supernanny, told The New York Times in 2005. "Jo and I talked a lot off-camera. One time, we were doing an interview ...