LOS ANGELES, Nov 18 — The prognosis is good for The Night Shift.

NBC has renewed the medical drama for a fourth season, it was announced yesterday.

The Sony TV series has proven a reliable performer for the network during its summer runs, most recently averaging a 1.4 rating among adults 18-49 in live-plus-seven numbers.

The Night Shift is one of the few scripted success stories of the past summer on broadcast television, with CBS (BrainDead, American Gothic) and ABC (Mistresses) failing to draw eyeballs in the era of Peak TV.

The Night Shift is also one of a small number of NBC original series not produced in-house by Universal TV.

The network’s other outside productions include Sony’s The Blacklist, its upcoming Redemption spinoff and Timeless, as well as Blindspot and upcoming comedies Trial & Error and Powerless, which hail from Warner Bros.

The Carmichael Show, another one of NBC’s summer launches, is co-produced by Universal and 20th TV.

“Week after week The Night Shift tells incredibly engaging and emotional stories that draw us into a unique world,” said NBC Entertainment president Jennifer Salke.

“We are delighted to renew the show for an exciting fourth season and look forward to continue working with such a great cast and executive producing team.” — The Hollywood Reporter/Bloomberg