
As a scientist, I reach conclusions
based on OBSERVATION and experimentation.
The Big Bang Theory Season 1, Episode 10

The OBSERVATION period
is almost over,
Westworld Season 2, Episode 4

His OBSERVATION of high-energy positrons
has provided the first evidence...
The Big Bang Theory Season 2, Episode 11

- Keen OBSERVATION, goodbye.
- You see where you went wrong, don't you?
The Big Bang Theory Season 1, Episode 12