Filming In Brooklyn is a great resource for all things TV and film currently shooting in Brooklyn. The blog's owner, Amy, is also a CH resident (which means she will usually have the scoop for all local filming). She even hosted a TV show filming in her house yesterday!
Filming tomorrow is Fringe, which is apparently obsessed with Clinton Hill. They were over near Pratt a few weeks ago, and will be on Clinton and Greene tomorrow.
(Fringe is a JJ Abrams show. He's the guy who did My So-Called Life Felicity, Alias, and LOST. Worth tuning in this fall.)