So many shows either cancelled way to early or went on too long.
In no particular order:
Dead Like Me
Wonderfalls (talk about getting the axe too early!)
Picket Fences
Brimstone
Dark Angel (1st season was superb but 2nd was... not so good but a 3rd season might have redeemed it)
Xena
Committed (I don't usually miss sit-coms that last 1 season or less but I loved Jennifer Finnigan in this)



