
So the IDEAL interstellar lingua franca
would be haptic.
The Big Bang Theory Season 8, Episode 21

...of the never-to-be-realized
IDEAL family unit.
The Big Bang Theory Season 3, Episode 11

I know it's not IDEAL,
The Big Bang Theory Season 10, Episode 18

...is your IDEAL mate.
The Big Bang Theory Season 3, Episode 12

She's an IDEAL match.
Game of Thrones Season 3, Episode 2