It's been a long time since I watched ER consistently, but I've totally been sucked in to these eps with the guest stars of the past....
Noah Wyle's character has kidney failure, apparently. And there's a transplant team from County General that Julianna and George .... oh, wait, George just revealed himself to the gals. catching up on old times.
9:20pm ooh, evidently G and J have kids. "girls"
Plus the normal insanity of the ER....God I love this show.