You're very clever, Batman. Judging by your appearance, I'd never guess your secret, but the Batphone line led us right to you.
10 seconds sound clip from Batman (1966) - Scat! Darn Catwoman (S2E41) TV Series.
You can hear this line at 00:12:53 in the Blu-ray version of the movie.
Quote context
[...]
- Meanwhile, back in the rundown apartment of the world's richest and cheapest inventor, Pat Pending
- One million seven hundred thousand nine hundred and forty-eight.
- Stay right where you are, Batman.
- That's right. And you're he... uh, him. Batman.
- Me? Batman? With this paunch? Ha, ha.
- Oh, this is some sort of trick on Batman's part.
- And where is Rudy, your valet?
- Correction. We have him at police headquarters in his guise as Robin, the Boy Wonder.
- That's ridiculous. Rudy's 32 years old.
- And obviously very spry for his age.
- Come on, Batman. It's all over.
[...]