Photo: Actor Tye Sheridan, from left, with filmmaker Zach Wechter and Quibi chief product officer Tom Conrad during a keynote at CES in January. Photo by BloombergJeffrey Katzenberg’s video streaming service Quibi is shutting down, said a person familiar with the situation, bringing down the curtain on the short-form video streaming service just six months after it launched.The closure is a stunning end to Katzenberg’s hopes of creating a new category of video entertainment, short programs of a few minutes in length that could be watched on the go. Katzenberg, a former Disney executive...…Photo: Actor Tye Sheridan, from left, with filmmaker Zach Wechter and Quibi chief product officer Tom Conrad during a keynote at CES in January. Photo by BloombergJeffrey Katzenberg’s video streaming service Quibi is shutting down, said a person familiar with the situation, bringing down the curtain on the short-form video streaming service just six months after it launched.The closure is a stunning end to Katzenberg’s hopes of creating a new category of video entertainment, short programs of a few minutes in length that could be watched on the go. Katzenberg, a former Disney executive...WW…