Not everything ends well or even ends at all....but there's some good stuff out there in the sea of media that is worth watching.
Megas XLR was only 26 episodes and the show was mostly giant robot smashing I loved the characters, I totally know dudes like Coop and Jamie I'd say Coop fighting his skinny evil alternate reality self with the glorft is some version of closure. Good enough
http://youtu.be/jzxSk9Ic0dE
Ron Moore's Battlestar Galactica was 4 seasons Scifi stretched out from 04 to 09. I'm pretty sure it was this show that started the whole mid season break bullshittery The ending fit the series, the ending was fantastic. For me the Galactica was a character too, just like Going Merry was a OP character and her end was true to everything she was the last episode is boo hoo hardcore.
http://youtu.be/92Pf2MH_yYQ