What is the single best episode of television you've ever seen?
There are certainly some individual episodes of Lost that blew. my. mind. and I immediately thought of the classic finale episode of Newhart, which was just all kinds of brilliant, as well as the "Get on Your Feet!" episode of Parks and Recreation.
[CN: Reference to injury.] But for sheer unrelenting wow, I've probably got to cast my vote for the episode of Homicide: Life on the Street in which Vincent D'Onofrio plays a man who gets caught between a subway train and a station platform. It was breathtaking and difficult and powerful.