Although it would likely seem tame today, Prince Edward’s 1987 televised and themed TV special, It’s a Royal Knockout, became a precursor to the royal scandals and embarrassments of the 1990s. Nobody more than the late Queen Elizabeth II herself felt this humiliation, although it has been revealed that she simply “couldn’t say no” to her youngest child. Filmed at Alton Towers in Staffordshire, England, U.K., the program pitted four teams of celebrities with senior and junior members of the British royal family in a medieval-themed “competition” with the proceeds going to charity. Although a go…