227 (beyond season 1), Benson (beyond season 2), The Drew Carey Show, Unhappily Ever After, 704 Hauser, and Amen are definitely a few shows, not all of which are terribly obscure, that aren't out on DVD and are good enough to be...
Not sure about the others but I've heard that the music rights for
The Drew Carey Show are pretty expensive. Expensive music rights are also what scuttled further DVD releases of
Malcolm in the Middle and
Murphy Brown, among others.
I wonder if music rights are also part of the stumbling block for
Unhappily Ever After too thanks to using "Hit the Road Jack" as the theme song. Perhaps that combined with the fact that it seems that very few people seem to remember that show. I think a lot of people dismissed it as a
Married with Children ripoff but I really liked it, if only for the Mr. Floppy segments. And then that one episode where they go to a fancy restaurant and meet Erik Estrada, who is really miffed that they don't recognize him, so he keeps dropping hints about his motorcycle, etc. Eventually, he dresses up in his full
CHiPs uniform, they finally recognize him, and he berates them for bothering him in public and that he just wants to dine in peace!
BTW, after a quick search on Amazon, I found a couple listings for
The Drew Carey Show. There's a 6-episode Best Of DVD that's out of print and really expensive but the complete 1st season seems to be available for a reasonable price considering it came out back in 2007. It's nowhere near the complete series but it's a start.
https://www.amazon.com/Drew-Carey-S...ZNQS0F27K7X&psc=1&refRID=8JR7P52WWZNQS0F27K7X
Sadly, when I searched for
Unhappily Ever After on DVD, it just gave me a bunch of listings for
Married with Children and
Roseanne.