Shows that you loved but got cancelled

arrested development.

Deadwood, Firefly, Arrested Development, Farscape (did that get cancelled or just end naturally?) Anyhoo there is always lots of shows that get canned and they leave rubbish on instead. Bah

I was pretty sad when Fresh Prince of Bel-Air ended.

Reaper :(

Arrested Development- three series then canceled. 
The Real World- twenty three series and still going strong.
 
America sometimes you amaze even me.

Jericho. I remember the first time they canceled it, the last episode ended with a MAJOR cliffhanger. Then it came back for another 5 or so episodes and ended on another cliffhanger. OMG

Thank God you're here

Arrested Development, Firefly.

Monk.

Family Guy when it got cancelled. Then it came back and I didn't like it... go figure.

King of the Hill
Rocko's Modern Life
Ren and Stimpy
Dead Like Me
Samurai Jack
Avatar: The Last Airbender
John Doe
Stargate Atlantis
Whose Line Is It Anyway?
Married With Children
The Weakest Link

Firefly, Mission Hill, Space Ghost, Tough Crowd with Colin Quinn.

My Name is Earl.

Freeks and Geeks, Undeclared, and Family Guy but thats okay because it came back.

Futurama and Undergrads 

Pushing Daisies, Wonderfalls, Farscape, Studio 60 on the Sunset Strip

Arrested Development.  
 
Why everyone's saying Firefly is beyond me. That show was fucking horrible. 

• Every Star Gate series.
• Firefly
• Terminator Salvation
• Angel
• Buffy

Firefly and Sonic SatAM  
'tear'

Terminator TSCC

Pushing Daisies.

As a lot of people have already mentioned, Arrested Development was awesome. Also, iam3green mentioned The Tick a few pages back. Both the animated and live action ones were awesome. For some reason, Fox decided to air the live action one opposite Friends and Survivor. It would be interesting to see how it did in a better time slot.
 
However, number one on my list is easily Twin Peaks. I guess it's ok though because Twin Peaks still has my favorite series finale of all time, so it's all good.

Futurama and Firefly are the first that come to mind

Traveler, Day Break and Jericho.

 A lot of Andy Richter shows. 

Andy Richter Controls the Universe
Andy Barker P.I.
The Tonight Show with Conan O’Brian    

"Arrested Development.   Why everyone's saying Firefly is beyond me. That show was fucking horrible.  "

Firefly, farscape, arrested development.......mostly firefly, damn good show

Invader Zim

Arrested Development, Reunion, Giant Bomb TV Show.

Arrested Development, Deadwood, Journeyman are ones I can think of off the top of my head. Futurama would be on their, but it's on it's way back. Good Vs. Evil (G vs E) was a show that I felt didn't get it's time to properly grow, and they were just hitting their groove when the hammer came down. Part of me would also have liked a little more Rome, but I think they did everything they had to by the end of that show.

real sex

" @DrFreeman said:

"  Samurai Jack. "

That show was brilliant "

The Tonight Show with Conan O'brien. IT COUNTS!!!

" Firefly =( "

Freaks and Geeks...anyone who doesn't like that show deserves to have love made to them by Larry King
 

" Undergrads and Clone High  "

Firefly.

" The Black Donnellys, Arrested Development. "

Jericho,  The Black Donnellys, Firefly