A week or so after they saw it there was this conversation between them:
Archer: What was Bill and Ted’s favorite number again?
Jonah [authoritatively]: Sixty-eight.
Archer [puzzled]: Sixty-eight?
Jonah: Yep. Sixty-eight. …It might have been seventy-eight.
Archer: I don’t get what’s funny about that.
Jonah: Me neither. But it was definitely either seventy-eight or sixty-eight.