One Last Chance to See Dr. Horrible Free OnlineS Hulu TV is running the full three acts of Joss Whedon's supervillain musical Dr. Horrible's Singalong Blog today for free. Catch it today, and then buy the DVD that Whedon's brother Jed Whedon told Comic-Con fans would be coming soon, crammed with extra features. Plus, we now know that Whedon is planning to do more Dr. Horrible, so this episode is just the beginning! [Hulu TV]