At Buffy loads of times, off the top of my head- when Buffy and Willow find out Miss Calendar's dead, when Tara and Willow break up (just the song from that scene makes me weepy!), when Tara dies, when Spike dies, when Buffy cries over missing Angel, Anya's outburst about not understanding Joyce's death... probably quite a few more. Aside from Buffy, I cried at the season finales of Scrubs (the proper one, not the stupid medical school one) and Gossip Girl. I get teary at animal rescue programs quite a lot xD There's probably heaps that I can't think of.