The Pitt has been renewed for a second season - but the Max series has already gone through several changes. The medical drama, which premiered in January 2025, highlighted the highs and lows of working in emergency medicine with an unconventional approach - 15 episodes that showcase 15 hours of one shift. The Pitt ultimately turned into weekly appointment viewing, which marked Noah Wyle's second successful medical series. ER, which aired from 1994 to 2009, followed the inner life of an emergency room in a fictionalized version of Chicago's real Cook County Hospital.