Dr. McKay and Lt. Col. Sheppard in “Unfinished Business”

Dr. McKay

There must be some kind of a command code that needs to be entered first.

Lt. Col. Sheppard

Can you figure it out?

Dr. McKay

Yes, well command codes are usually quite simple like the number one or the letter A, like in Wraith.

Lt. Col. Sheppard

[angry] Can you figure out the code or not?!

Dr. McKay

NO! Not if I stood here and tried for a million years. And we have, uh, just under a million years less than that!