In a statement about the renewal, HBO exec Francesca Orsi praised Fellowes and the cast and crew for creating 'a "can’t-miss it" entertainment experience from week to week, and we’re delighted to continue exploring these characters’ grand ambitions for what we promise will be a thrilling fourth season.'

"Total premiere-night viewing for the third season has grown for five consecutive weeks, culminating in a 20 percent growth compared to last season," HBO said in a press release. "Fan engagement has also climbed, with social chatter rising nearly 60 percent week over week."