Night Stalker You realize you are in a cult conspiracy of satan don't you? He will trick at every turn as you trick your followers. Same old tired promises.
Be sure you're right, then go ahead

The Class
http://www.imdb.com/board/10484082/
Cult classics: Freaks & Geeks, Undeclared, Firefly, Clerks: The Animated Series.
And I also liked the American Life on Mars and Jack & Bobby.

I was going to say Nowhere Man. Great show.

Dittos! Boomtown was GREAT! Did not see Kingpin (but will) The SAME evolution (moronic) is occurring Again! Are we NOT all tired of seeing another great drama get sold down the Infamous L.A. River! ATTENTION: SOUTHLAND. Need I say more? NBC (NOBODY CARES) Sold the show to Turner and they made Southland WORK! With anticipation of another WTF season Fans are well seasoned to watch CBS and never having to change the channel, except to Fox (Once-in-a-while).
'Charles (Jerry) Dunphy aka "From the Mountain to the Seas"

Nowhere Man, Boomtown and Kingpin to go along with many already mentioned.
You know what hurts the most is the the lack of respect. You know? That's what hurts the most.

I Found "Life on Mars" an OUTSTANDING Police-Crime drama with REAL Talent supporting the show. Too Bad that the Writers made the Show's Cast look and Act like Morons on the Last Show! Space Ships? Time traveling? Body transformations? WTF! A bomb blast or having a criminal just walk in a Shoot everyone DEAD. Would have been at least somewhat PLAUSIBLE!
'Charles (Jerry) Dunphy aka "From the Mountain to the Seas"

Earth 2
Tales of the Gold Monkey
The Powers that Be
Kolchak The Night Stalker
Children with autism are angels without wings.

I'll echo Firefly, as it's the obvious answer here.
I'd like to add Caprica, which was awesome. I also really liked Tru Calling and Defying Gravity.
Several good shows have been mentioned which actually got into its 2nd season: Cleopatra 2525, Jack of All Trades, Jericho, Pushing Daisies. Liked them all but they did make it passed their first season.
Hard to say how many of them are really considered cult shows

American Gothic
Eerie, Indiana
Firefly
Police Squad
Studio 60 On The Sunset Strip
Visionaries: Knights of the Magical Light
http://bigbadabruce.tumblr.com/
http://bigbadabruce.tumblr.com/Reviews

"NIGHTMARE CAFE"(1992)
Cool it, Babyjust stick to your bumps and grinds.

I believe Clone High was intended to be only one season. More than one season would be too much, specially the way it ended.
I suppose. Much like what happened on DUCKMAN, I hate it when show's try to end with cliffhangers.
For DEMONIC TOYS and updates on Full Moon Films:
www.freewebs.com/demonictoys/

I am surprised no one mentioned kings, I saw the first episode on late night tv and was sucked into it, sadly I moved countries and never saw past episode 7. Even though the series was never completed I still would have liked to see the rest of the shows. and of course then there is firefly.
Shut up little man!

I believe Clone High was intended to be only one season. More than one season would be too much, specially the way it ended.
Pushing Daisies, as mentioned by BuffySchultz2004 was really awesome. It actually had two seasons, but like how Sarcophilus said of Jericho the second season was too hurried, the reason I, despite being a hugh fan of Pushing Daisies, never bothered to watch it. It's like meeting a great person for the first time in one day, then the next day going to his funeral because he died that morning. It would be too depressing to watch the funeral of Pushing Daisies, knowing that not even Ned could reanimate it with his touch.

Baby Blues
TEAM RICH FIELDS!
http://www.facebook.com/pages/Team-Rich-Fields/144178432264664

Rubicon
Drive

Lazarus man!
Surprised nobody has mentioned it. I really enjoyed it for the short time it was on our screens, damn shame it never had a chance to really get going but the circumstances of its cancellation were pretty tragic and understandable.
Keef, trying to make sense out of chaos!

"Probe" with Parker Stevenson. It had the misfortune to be in production when a writer's strike happened. After the strike, production was never resumed, for unknown reasons.

It's all like some bad movie.

Strange
The Chronicle-News From The Edge
Too Much Sun
Wake me up before you Monster A Go Go

Earth 2
VR5
Quark
The first 2 even ended on cliffhangers, dadgummit.

It's all like some bad movie.

Firefly
Moonlight
Invasion
Dead Last
Jericho (I know, technically it had 2 ssns, but I don't really consider ssn 2 "season" as much as I consider it an ending to ssn 1)
"Okay, okay, so I got wingslike kotex!"

The Oblongs
Brimstone
Firefly
Playmakers
Journeynman
Point Pleasant
Jack and Bobby

The Crow: Stairway to Heaven
Fear Itself
Brooklyn South
Action
Alien Nation
American Gothic
Eerie, Indiana
Ghost Stories
Harsh Realm
Brimstone
Space: Above and Beyond
The Lone Gunmen
The Honeymooners

Firefly
Surface
Flash Forward

www.jabootu.net

Yes, Eerie Indiana was awesome and had great potential. I was so sad to see it go.

I am not a fan. I just happen to enjoy movies. Fans are embarrassing.