Emily Longeretta / Variety: Jeff Probst Breaks Down 'Survivor' 50's Celeb Collabs, Promises They Don't 'Overshadow' the Game: 'Our Show Is Not Changing' - When Jeff Probst began planning "Survivor" 50, he knew he had to go big. As always, that began with the cast - sifting through the 700+ castaways who have competed ...