And a COW and a penguin.
The Big Bang Theory Season 3, Episode 10
Daddy finally figured out
that it wasn't spreading
from COW to COW,
Westworld Season 2, Episode 5
Whoops! Can't go any further,
there's a sacred COW in my way.
The Big Bang Theory Season 4, Episode 9
When a COW goes dry,
they don't keep feeding it...
The Big Bang Theory Season 1, Episode 12
or mad COW disease in my
grilled cheese sandwich?
The Big Bang Theory Season 5, Episode 16