
if you're getting
on that PLANE
The Big Bang Theory Season 12, Episode 22

...by an inclined PLANE
wrapped helically around an axis?
The Big Bang Theory Season 4, Episode 5

Isn't it a little late
to get PLANE tick...
The Big Bang Theory Season 7, Episode 17

Well, our PLANE leaves at 9 a.m.
Do you think you'll feel better by then?
The Big Bang Theory Season 3, Episode 15