Creator Joss Whedon has announced the "air" dates for Doctor Horrible's Sing-Along Blog.  The episodes will air on the official website drhorrible.com as follows:

• Part 1 – Tuesday July 15
  
• Part 2 – Thursday July 17
  
• Part 3 – Saturday July 19

These episodes will "air" online only until July 20.

Following that they will be made available for download at a "nominal fee" and in the near future available to buy on a very special DVD "with the finest and bravest extras in all the land".

Now it's time to spread the word far and wide to all the corners of the interweb.  Grab some banners from the official site (or visit the promotional page on this site) and post them everywhere you go – and be sure to cover those places people wouldn't normally hear about this.

This is your chance to play a part in changing the face of the entertainment industry forever.

Joss Whedon: "[Do] What you always do, peeps! What you’re already doing. Spread the word. Rock some banners, widgets, diggs… let people know who wouldn’t ordinarily know. It wouldn’t hurt if this really was an event. Good for the business, good for the community – communitIES: Hollywood, internet, artists around the world, comic-book fans, musical fans (and even the rather vocal community of people who hate both but will still dig on this). Proving we can turn Dr Horrible into a viable economic proposition as well as an awesome goof will only inspire more people to lay themselves out in the same way. It’s time for the dissemination of the artistic process. Create more for less. You are the ones that can make that happen."

• Joss Whedon Post on Whedonesque
• The Official Website & "Air" Location

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