What can’t Shonda Rhimes do?

She’s the executive producer of the hospital drama “Grey’s Anatomy,” the political thriller “Scandal,” and the legal potboiler “How to Get Away With Murder,” which air in contiguous time slots on ABC. The network hasn’t packed three programs by a single executive producer into one night since 1982, when Aaron Spelling’s series “T.J. Hooker,” “The Love Boat,” and “Fantasy Island” aired back-to-back-to-back on Saturdays. All three Rhimes dramas, including the freshman “Murder,” are popular hits, which is why ABC recently extended its deal with Rhimes’s production company, Shondaland, to keep her on the hook through mid-2018.