I used to be really into the Prince of Tennis, D.Gray-man and One Piece fandoms. Getting involved with fic, art, and other fans and all. Now it's more like collecting doujinshi out of habit for these three :')
Forever involved fandoms are:
FMA, Ao no Exorcist, Getbackers and Kyou Kara Maou ♥
As for television.. I had a phase with asian dramas, during which I discovered the awesomeness of GTO, Rookies, My Girl (korean series), Someday (also korean), and Nobuta wo Produce. Currently though, it's just WB's Supernatural for me