The Mar/Apr issue of Film Comment has an article.  It's a piece about the tv series he did in 1960 called
Johnny Staccato.
   It took me a while to get to this. I had to get past keeping
my gorge down looking at Dustin Hoffman as the featured artist
on the cover.  :-/
   The writing is good and gives that ol' hipster feeling
to the extent that I'm wishing that the shows would be
released on video. The Cassavettes-directed episodes are 
being shown at some art houses and, of course, Cassavettes
stars as Staccato himself.