Hey guys, we just wanted to remind you about tonight’s Series Finale of ER. After an unprecedented fifteen year run on The Peacock Network, the pioneering medical drama will sign off from Chicago’s fictional County General Hospital on Thursday night.

Noah Wyle, Alexis Bledel, Ernest Borgnine, Parminder Nagra, Scott Grimes, David Lyons, and Angela Bassett will guest star.

The two-hour series finale event of ER airs tonight at 9 P.M. on NBC. The show will preceded by an ER retrospective airing at 8 P.M.

(The end of an era. Sorry to see it go. R.I.P ER.)