My, oh, my, if you'd seen what I saw.
6 seconds sound clip from Batman (1966) - The Penguin's a Jinx (S1E4) TV Series.
You can hear this line at 00:22:49 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, come on, Aunt Harriet. Just one more hors d'oeuvres, huh?
- After all that shrimp salads no, indeed, Dick Grayson. I'm not going to see you have nightmares.
- It's bad enough that our peaceful home was involved in a wicked crime last week.
- My, oh, my, if you'd seen what I saw.
- You see Dick and I were off fishing.
- You really know as much about it as I do. You've read it in the papers.
- Perhaps you'd like to wander over there, and ask Commissioner Gordon.
- The origin of the Batcostume, ladies and gentleman, is simple.
[...]