Shonda Rhimes’ ‘Grey’s Anatomy’ Makes History As The Longest Running Primetime Medical Show

Image courtesy of Paul Hebert/ABC

Grey’s Anatomy is making television history. Its upcoming 332nd episode titled We Didn’t Start the Fire will officially make ABC's series, which has been on for fifteen seasons, the longest-running primetime medical drama in the history of television, surpassing NBC’s ER (with 331 episodes).

Created and exec-produced by Shonda Rhimes, The series currently stars Ellen Pompeo (Meredith Grey), Justin Chambers (Alex Karev), Chandra Wilson (Miranda Bailey), James Pickens Jr (Richard Webber), Kevin McKidd (Owen Hunt), Jesse Williams (Jackson Avery), Caterina Scorsone (Emilia Shepherd), Camilla Luddington (Jo Karev), Kelly McCreary (Maggie Pierce), Debbie Allen (Catherine Fox), Kim Raver (Teddy Altman), and Giacomo Gianniott (Andrew DeLuca).

Rhimes shared her excitement about this major milestone via Twitter earlier this week.

In the upcoming episode, written by Andy Reaser and directed by Grey's own Chandra Wilson, nothing goes as planned when Jackson throws a party to celebrate Catherine’s surgery and those who worked to save her. Meanwhile, Helen pays Alex and Jo a surprise visit. 

See ABC's promo below.