Telltale Games is celebrating the 20th anniversary of Wallace & Gromit’s first animated short, A Grand Day Out, by giving fans the chance to download a free episode this week.

Gamers have until the 8th of November to download ‘Muzzled!’ for free. This popular episode sees the famous duo setting out to “thwart a phony philanthropist and visit a rollicking carnival, all in one!” Head over to the 20th Anniversary page to download Muzzled today.

You can also pick up the full season of Wallace & Gromit’s Grand Adventures for just $20 through Telltale Games’ website, with a portion of the sales going to two charities. And you can pre-order the Collector’s DVD which includes all four episodes and tons of bonus content like animated shorts and behind the scenes videos. Last but not least all four episodes of the Grand Adventures will be available on Xbox Live Marketplace for 800 Microsoft Points each today.