This episode is on a lot of top 10 lists, and rightly so. The main reason (in our opinion) for its status as a critics' favorite is the introduction of Dr. Leo Spaceman (Chris Parnell), pronounced Spa-cheh-min. Spaceman is a wildly inappropriate doctor without any sense of decorum or timing. In other plotlines, Jenna Maroney gets booted from a "Late Night with Conan O'Brien" guest spot in favor of Tracy, and Tracy begins hallucinating right before he's about to go on "Late Night." Liz and company scramble to get him his medicine and shove him onto the show, where he promptly falls asleep.
Conan O'Brien's guest spot is great, but Leo Spaceman became an instant classic.
