It’s strange how a medical drama that started as a midseason filler could go on to define so much of what we expect from emotional storytelling on Television. But Grey’s Anatomy did exactly that.

ABC is renewing four dramas and one comedy series, Variety has learned. The Disney-owned broadcaster has picked up new seasons of “9-1-1,” “Grey’s Anatomy,” “The Rookie,” and “Will Trent” as well as ...