
a Helmet of Confusion spell
on Billy the Kid's cowboy hat?
The Big Bang Theory Season 5, Episode 10

CUOCO:
Billy Bob Thornton. Does Penny live here?
The Big Bang Theory Season 12, Episode 24

Billy the Kid
or the White Wizard?
The Big Bang Theory Season 5, Episode 10

Jack and Billy.
Game of Thrones Season 2, Episode 7

Billy climbs a tree better than anyone.
Game of Thrones Season 2, Episode 7