While we're waiting for the Heroes show to return (probably in fall), you can watch new episodes of a different kind.
They are online graphic novels. Literally its a video of a comic strip story. These are stories which don't necessarily include the main characters of the show, though they may be related to them
I just watched three episodes:
"A lesson in electricity" - the secret story of Ben Franklin's kite-in-the-storm experiment
"War Buddies" - a story of Mr Linderman (the healer) as a young man, home from war
"Secret of History" - how did the pharohs build the Egyptian pyramids? Was there an easier way for a man to build than depending on the strength of hundreds of slaves, taking 20 years? Was more than one man needed?
Pick an episode, and enjoy