
I think it starts with
good COMMUNICATION--
The Big Bang Theory Season 9, Episode 15

Apparently, there was
a COMMUNICATION problem.
The Big Bang Theory Season 7, Episode 5

All we have to do
is rig a 3D COMMUNICATION system.
The Big Bang Theory Season 8, Episode 21

your technology into
a COMMUNICATION system,
The Big Bang Theory Season 11, Episode 8

for a neutrino-based
COMMUNICATION system,
The Big Bang Theory Season 11, Episode 8