What?
You're familiar with the REFERENCE?
The Big Bang Theory Season 10, Episode 7
...you'd be in a non-inertial
REFERENCE frame and would...
The Big Bang Theory Season 1, Episode 3
was an obvious REFERENCE
The Big Bang Theory Season 7, Episode 3
I marked the calendar
for future REFERENCE.
The Big Bang Theory Season 1, Episode 4
For future REFERENCE,
if I want to watch Mean Girls,
The Big Bang Theory Season 9, Episode 11