1. Lady Sybil's Death on Downton Abbey
I knew this development was coming because I'd been spoiled after the U.K. airing, and yet and yet and yet...I wept like an infant. Downton Abbey has gotten so fast in its plotting that it's hard to get attached to any of its careening developments. But Sybil was a wonderful character, and Jessica Brown Findlay was lovely on the show. So yes: weep!
I also loved Sybil and Thomas' relationship, so this part made me cry too.
2. "The Ghost Is Seen" episode of Enlightened
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If you watched the above snippet of Enlightened, I assume you are weeping like I just did (again). Mike White and Laura Dern's HBO show was beautiful and touching always, but this fifth episode from Season 2 — in which Tyler (White) opens himself up to Eileen (Molly Shannon) — was particularly heartbreaking. Tyler's conception of himself (as a "ghost") is an example of one of the things that made this show original: You just don't see these sorts of characters humanized in pop culture.
3. The "Six Minutes" episode of The Killing
Also, this YouTube user put Ray's journey to Mozart's "Requiem: Lacrimosa."
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And I'm crying again.
4. Catelyn's death at the Red Wedding on Game of Thrones. (Also, the entire Red Wedding.)
I don't think there's anything more to say here?