Wacky Races ran on CBS from September 14, 1968, to January 4, 1969.
According to Wikipedia.
(According to Wikipedia.
Tribs 🦇 ↓ dn ʎɐʍ sᴉɥʇ ↓🦇,
Sat 2 Feb 2013, 17:30,
archived)
proof that its failure was simply due to it being ahead of its time
PedroHin Come along & ride on a Flantastic Voyage,
Sat 2 Feb 2013, 17:36,
archived)