This is awesome news, I was just about to post a question about this a couple of days ago when I got finished with my Huckleberry Hound set. HB by far is my favorite studio for animation release these days and I hope up they keep up the good work in 2006.
Also... After catching the last half month of Boomerang, they really should do a DVD with Yogi's First Christmas, Yogi Bear's All-Star Comedy Christmas Caper, and Casper's First Christmas and put all the HB Yogi & The Gang Christmas specials together. They could also do one with the Flintstones with A Flintstone Christmas, A Flintstone Family Christmas, A Flintstones' Christmas Carol.