Also airing Wednesday, Sept. 30, 2015: “Modern Family” on ABC and “Empire” on Fox.

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‘Code Black’

Marcia Gay Harden stars as residency director Dr. Leanne Rorish in one of the only medical dramas to premiere this season. The setting is Angels Memorial Hospital (the “busiest, most notorious ER in the nation”). Luis Guzman plays a senior nurse, while Melanie Chandra, Harry Ford, Benjamin Hollingsworth and Bonnie Somerville play the new first-year residents. Series premiere, 10 p.m. Wednesday, Sept. 30, on CBS.

Read the full story about the making of the series.

Doug Knoop: or on Twitter @dougknoop

Also on Wednesday

“MLB Baseball,” 7 p.m. (ROOT): Houston Astros at Seattle Mariners (Live).

“Nature,” 8 p.m. (KCTS): A two-toed baby sloth gains independence in Costa Rica; a young kangaroo learns how to socialize with his mates in Australia; a baby fruit bat needs help when its mother is unable to provide milk.

“Bella and the Bulldogs,” 8 p.m. (Nickelodeon): Bella brings Troy to meet an NFL legend; Troy reveals a secret to Bella; Pepper and Newt have to do crazy dares in order to spend time with Sophie and Sawyer.

“Modern Family,” 9 p.m. (ABC): Phil and Claire are hurt when Alex lies about her college move-in date and Luke doesn’t want to spend the day at Phil’s open house; being landlords stresses out Mitch and Cam.

“Empire,” 9 p.m. (Fox): Cookie tries to start a small record label with her cohorts, but conflicting visions cause problems; Hakeem woos an attractive singer; Lucious hires a new lawyer and records a track in jail.

“Chicago PD,” 10 p.m. (NBC): Intelligence pursues heroin kingpin Derek Keyes; Lindsay’s downward spiral continues; Olinsky tells Platt about a secret from his past; Roman talks to Burgess about his concerns regarding Ruzek.