Season 1
The first season of the animated show Metalocalypse originally aired on Adult Swim from August 6, 2006 to December 17, 2006 with 20 episodes. The show follows virtual death metal band Dethklok. The majority of the music featured this season was released on the 2007 album, The Dethalbum.
Episodes
1 The Curse of Dethklok Aug 6, 2006 
2 Dethwater Aug 13, 2006 
3 Birthdayface Aug 20, 2006 
4 Dethtroll Aug 27, 2006 
5 Dethkomedy Sep 3, 2006 
6 Dethfam Sep 10, 2006 
7 Performance Klok Sep 17, 2006 
8 Snakes N' Barrels Sep 24, 2006 
9 Mordland Oct 1, 2006 
10 FatKlok Oct 8, 2006 
11 Skwisklok Oct 15, 2006 
12 Murdering Outside The Box Oct 22, 2006 
13 Go Forth and Die Oct 29, 2006 
14 Bluesklok Nov 5, 2006 
15 Religionklok Nov 12, 2006 
16 Dethkids Nov 19, 2006 
17 Dethclown Nov 26, 2006 
18 Girlfriendklok Dec 3, 2006 
19 Dethstars Dec 10, 2006 
20 The Metalocalypse Has Begun Dec 17, 2006