The three stories comprising the Myths and Legends Box set will be released in North America on July 6, 2010.
Unlike the UK release the stories will be issued as individual titles. The three releases are the Third Doctor story The Time Monster, and the two Fourth Doctor stories Underworld and Horns of Nimon.
The First Doctor Box set comprising The Space Museum and The Chase will also be released on 6th July.
A full release schedule can be found in our Releases section.