MGM agreed to pay $1.03 billion to buy full ownership of EPIX on Wednesday, betting that the "TV Everywhere" pioneer will help it grow. Metro-Goldwyn-Mayer, or MGM, is buying EPIX from Viacom and Lionsgate, who together owned more than 80 percent of the premium service. MGM — the company behind series like "Fargo" and "The Handmaid's Tale" — will now...