HEROES Season 3 New Promo Video August 18, 2008 Heroes NBC has released a longer promo for the third season of HEROES. You can watch it below. The promo actually shows a lot from the first episode we saw at Comic Con (you can read all the spoilers from Heroes‘ Season 3 first episode here.) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)