You think that's something. You ain't seen half of it.
3 seconds sound clip from The Ant and the Aardvark (1969) - The Ant from Uncle (S1E3).
You can hear this line at 00:04:58.390 in the Blu-ray version of the episode.
Quote context
[...]
- Looks like you missed the boat, old buddy.
- So how come it works for him?
- All right, Ant. It's time for evacuation.
- Hey, Dad. You realize you're invading the sanctity of my home?
- Hey, Ant, what is this place? Nothing but hallways.
- You think that's something. You ain't seen half of it.
- You know, it's just like me to pick a day when his water heater exploded.
- The one sure way to hurt an ant is to plug up his anthill.
- You're just wasting your time, daddy-o, because I moved in with my relatives, the Gi-Ants.
- This anthill is sort of a condominium of sorts.
[...]