
...correcting for observation bias
and postulate an INITIAL dating age of 15...
The Big Bang Theory Season 4, Episode 1

Accelerating at an INITIAL rate
of 32 feet per second.
The Big Bang Theory Season 1, Episode 2

You sign here, date here,
and Penny, if you could INITIAL here
The Big Bang Theory Season 10, Episode 13

...because of your INITIAL
and inadequate deceit.
The Big Bang Theory Season 1, Episode 10

a tiny change
in the INITIAL conditions
The Big Bang Theory Season 7, Episode 16