You never know when you’re going to need to have your “Real Housewives” knowledge handy — even on “Jeopardy!”. Kyle Richards, Lisa Rinna and Garcelle Beauvais took to Instagram to share a clip from a recent episode of the long-running game show which had a contestant stumped when she was asked to identify which “Real Housewives” franchise Richards, Rinna and Beauvais were from.