They have announced the episodes for the 20th Anniversary DVD:
#211 - First Spaceship on Venus
#706 - Laserblast
#904 - Werewolf
# 1004 - Future War
"She undercut the subtle nuance of my wiener jokes!"
EDIT: According to the liveblogging on Satellite News, the press release says the set will include "a Crow figurine and collector's cards".