PILOT-Edward G. Robinson heads an all-star cast in the life-and-death medical drama Operation Heartbeat, co-starring Kim Stanley, Maurice Evans, Kevin McCarthy and Shelley Fabares. Lawsuits fly when a widow (Stanley) believes a gifted surgeon (Richard Bradford) allowed her husband to die so his heart could be transplanted into the doctor's ailing mentor and friend (Robinson). Operation Heartbeat was the pilot movie for the TV series Medical Center. And while James Daly would continue as chief of staff Dr. Paul Lochner, Chad Everett would replace Bradford as UMC's brilliant professor of surgery Dr. Joe Gannon. The seven-season Medical Center would tie Marcus Welby, M.D. as the longest-running medical drama in TV history until the 15-season-run of ER took the crown.