DVDEmpire.com has put up this pre-order listing
for 21 Jump Street - The Complete 1st Season
. In it, they go into a couple of details about extras that were missing from what Anchor Bay previously hinted at
Anchor Bay had said that "Audio Commentary, Cast & Producer interviews will be included." DVDEmpire's listing shows that there will be an "Audio Commentary with star Peter DeLuise" (who played officer Doug Penhall during the early seasons of the show).
DVDEmpire also mentions that an "8 Page Booklet With Liner Notes & Color Photos" will be included as well. Stay tuned, and we'll let you know what else we find out as more and more info leaks out!