Since apparantly a lot of people aren't aware of some such shows coming to DVD (hence the why ALF, where's my Knight Rider?), here's a list of confirmed release dates for some sci fi and 80's/90's shows that are getting the DVD treatment this year. For shows that are already out, I never bothered to list 'em...just the ones that haven't bowed out on shiny coaster format yet.
7/20/04
Boomtown Season 1
Millenium Season 1
7/27/04
Sledge Hammer 1st season
V: The Series: Complete Series
08/03/04
Knight Rider: Season 1
Sliders: Seasons 1 & 2
08/10/04
ALF: 1st Season
Manchild: First season
08/17/04
Benji, Zax, and The Alien Prince: Complete series
Happy Days Season 1 (Cause Fonzie's coool)
08/24/04
Kolchak: The Night Stalker
The Munsters: 1st season
08/31/04
Star Trek : 1st season
09/07/04
The Twilight Zone: Complete Season (The new one)
Info is from Amazon, TVshows on DVD, and press releases from respective studios.