As she handed me the check in payment, she said I could bank on its being false.

7 seconds sound clip from Batman (1966) - Holy Rat Race (S1E18) TV Series.

You can hear this line at 00:08:56 in the Blu-ray version of the movie.

Quote context

[...]

- The young lady who paid for the announcement, she was not only staggeringly beautiful she had green hair.

- Green hair! Holy wigs!

- Does that mean anything to you?

- Indeed it does.

- Good observation, Gore. Darn good observation.

- Then perhaps you can tell me what she meant by a parting remark.

- As she handed me the check in payment, she said I could bank on its being false.

- Check bank false.

- What bank was that check drawn on?

- Gotham National.

- Of course. That's the bank the False Face is planning to break.

- You mean the check is no good?

- Not as a check, but as a message. Yes.

[...]