I started watching 宇宙戦艦ヤマト2199 (Space Battleship Yamato 2199) - I've never watched the original Space Battleship Yamato, but I've always been intrigued by the artwork. I saw lots of ads and displays for 2199 in a lot of record/DVD shops in Tokyo last summer, but never got around to checking out the remake until now.
I'm usually not a huge fan of big space/military/tactical/war series, but this has got me absolutely hooked. I'm not quite sure what sets this apart from shows I've abandoned in the past. The production value is amazing, though - the artwork is beautiful, and the soundtrack is awesome. The episode progression/story so far actually reminds me quite a lot of the first season of the Battlestar Galactica reboot. It's very character driven and engaging.