This is a nifty site I stumbled across while I was looking for some hard to find TV series. They had it.
While most of the DVDs you buy from here seem to be nothing more than burned copies, it's nice to be able to find TV shows on disc that were never released and really it's not hard to make them look authentic on your own so they fit in with the others in your collection.
Some times you get lucky and can find a seller that has a case and disc art for what you buy. Make sure you read the descriptions so you know what you're getting.
With the prices being reasonable and shipping quick, there's no reason I wouldn't go back to this site to find even more of the old shows I love and miss.