Some POPULAR early main ingredients
included blueberry, anchovy...
The Big Bang Theory Season 3, Episode 17
...in the POPULAR online game
"Words With Friends."
The Big Bang Theory Season 6, Episode 6
and in the POPULAR board game
"Hungry Hungry Hippos,"
The Big Bang Theory Season 7, Episode 12
While all the POPULAR kids are off doing...
The Big Bang Theory Season 8, Episode 22
The word is "POPULAR."
The Big Bang Theory Season 8, Episode 8