Oh, yeah. The Mr. Spock CUCKOO clock.
The Big Bang Theory Season 10, Episode 10
was for CUCKOO pills.
The Big Bang Theory Season 7, Episode 7
By that standard,
Penny is CUCKOO for Cocoa Puffs.
The Big Bang Theory Season 4, Episode 9
It's like the world's
fattest CUCKOO clock.
The Big Bang Theory Season 7, Episode 23
The newly hatched CUCKOO
eats all the food...
The Big Bang Theory Season 1, Episode 15