EXCLUSIVE: Check Out This Extended Clip From 'Metalocalypse' Season 4

News flash: Dethklok bassist Murderface is no Einstein, doesn't know who William Shakespeare is. Also, it's very possible he doesn't know who Einstein is.

The fourth season of "Metalocalypse" is headed to DVD and Blu-ray on October 30th and we've got the disc details after the jump.

From Adult Swim PR:

This October, the Metalocalypse will be among us. Adult Swim is set to release Metalocalypse Season 4 on DVD and Blu-ray Disc on October 30, bringing Dethklok, the world’s most brutal animated band, back to DVD and Blu-ray for the first time in two years. In the fourth season of the comedy series from co-creators Brendon Small and Tommy Blacha, the band welcomes guest appearances from the likes of Corpsegrinder (Cannibal Corpse), Cam Pipes (3 Inches Of Blood), Dweezil Zappa, Jon Hamm and director Werner Herzog among others. Along with all 12 episodes from the series’ fourth season, the Metalocalypse Season 4 DVD and Blu-ray releases will feature more than two hours of special features. Highlights from those features include a 90-minute feature film of Nathan Explosion tackling his latest Shakespeare reading, in “Nathan Reads Shakespeare 4: Comedy of Errors,” a series of band member “StaresDowns,” a look at Dethklok Fan Art, “MurderThoughts,” a “Pickles Flyby” and much, much more.

Adding to the brutal excitement surrounding Dethklok fans this fall will be the release of Metalocalypse: Dethklok Dethalbum III, the highly-anticipated follow up album that fans have been begging for. Featuring 12 brand new tracks and co-produced by Metalocalypse co-creator Brendon Small and Dethklok producer Ulrich Wild (The Dethalbum and Dethalbum II), the Metalocalypse: Dethklok Dethalbum III will be available throughout North America on October 16, 2012 from Williams Street Records. It will not only be released in its original CD and digital format, but also as a Deluxe Edition CD/DVD and a clean version of the CD. The Deluxe Edition CD/DVD will include a 32-minute behind-the-scenes documentary of the making of Dethalbum III, as well as music videos and much more. A vinyl edition of the album with special etching will be released on November 6, 2012. Details on an upcoming fall tour for Dethklok will also be available soon.