At least three of them are double packs while the other three are single releases. The episodes contained within them span from the Fifth Series up to the Jack and the Pack spinoff show.
The double packs returning include; Spills & Chills/New Friends for Thomas, Thomas and the Toy Workshop/Thomas & the Really Brave Engines and Thomas' Trusty Friends/On Site With Thomas.
The single discs reprieving involve; It's Great to Be An Engine, Track Stars and Mud Glorious Mud.
The six Thomas & Friends releases return to US DVD shelves all on March 6th 2012.
PRE-ORDER THE RE-RELEASES