They will be available in a 22 episode 4 disc collection or a 6 disc collection containing over 2 hours of extra footage.
Smallville the complete series box set will contain 62 discs with all 218 episodes with extras and over 5 hours of bonus features.
The two bonus disc will include
*A Retrospective Look at the Series with Season Features
*A Decade of Comic-Con
*Paley Fest 2004 Event
*Rare Aquaman and 1961 Adventures of Superboy Pilots
*Extended Version of the 100th-Episode Documentary
*Secret Origin: The American Story of DC Comics Documentary.