Nina Paley’s Sita Sings the Blues, the winner of the Filmmaker-sponsored “Best Film Not Playing at a Theater Near You” Gotham award, screens on WNET’s Reel 13 series on March 7, but the complete feature is now available online at the Channel 13 site. If you aren’t going to be home on the 7th, don’t have TiVo, or just want to sample some of the movie and find out what all the fuss is about, click here.