# of seasons list, Nick Game Shows (Seasons, in Nick Terms, are per batch of eps ordered...Sorta like GSN Originals)
Double Dare - 9 (DD '86, DD '87, SSDD '87, DD '88 #1, Fox FDD, DD '88 #2, SSDD '89, FDD '90, FDD '92)
Finders Keepers - 3 (Eure '87, Eure '88, Toffler '88)
Make the Grade - 3 (Schnieder '89, Schnieder '90, Morris '91)
Think Fast - 2 (Carrington '89, Lackey '90)
Wild & Crazy Kids (Original) - 2 ('90, '92)
What Would You Do - 2 ('91, '92) (I'm not sure on this one, since It's been ages since I've seen it)
Nick Arcade - 2 ('91, '93)
Get the Picture - 2 ('91 #1, '91 #2)
GUTS - 4 ('92, '93, '94, '95 [Global Guts])
Legends of the Hidden Temple - 3 ('93, '94, '95)
Figure It Out - 4 ( '97, '98 #1, '98#2 [Family Style], '99 [Wild Style])
You're On - 2 ('97, '98) (I'm not positivie on this one, either)
Double Dare 2000 - 2 ('00 #1, '00 #2)
Wild & Crazy Kids (New) - 1 (2002)
I think that's it. Remember, that's broken down by seasons [A Season for Nick is 1 production Order]
And, in talking first aired to last aired.
DD - 1986/1993
FK - 1987/1989 [Last eps were in '89, with '88 copyright date]
MTG - 1989/1991
TF - 1989/1990
W&CK - 1990/1993
WWYD - 1991/1993 (Not Entirely Sure)
NA - 1991/1994
GTP - 1991/1992
GUTS - 1992/1995
LoTHT - 1993/1995
FiO - 1997/2000
YO - 1998/1999 (Not Entirely Sure)
DD2k - 2000/2001
WACK - 2002 (Shortest run of ANY Nick Original to date)