
Who needs "Halo"
when we can be regaled...
The Big Bang Theory Season 1, Episode 7

- What are you guys doing here?
- It's "Halo" night.
The Big Bang Theory Season 1, Episode 7

Do I have a HALO?
Breaking Bad Season 5, Episode 8

Sheldon, Halo night, Koothrappali's.
You coming?
The Big Bang Theory Season 2, Episode 6

Wednesday's Halo night.
The Big Bang Theory Season 2, Episode 6