
Penny,
you face failure on a daily BASIS.
The Big Bang Theory Season 4, Episode 7

Finally getting used to them
doing it on a daily BASIS?
The Big Bang Theory Season 4, Episode 18

Sorry, you're on a need-to-know BASIS.
The Big Bang Theory Season 9, Episode 19

Oh, yeah. Wasn't that the BASIS
of your postdoc fellowship?
The Big Bang Theory Season 7, Episode 20

as the BASIS for
a communication system.
The Big Bang Theory Season 11, Episode 8