Yeah. We give up!
5 seconds sound clip from Batman (1966) - When the Rat's Away the Mice Will Play (S1E12) TV Series.
You can hear this line at 00:06:46 in the Blu-ray version of the movie.
Quote context
[...]
- Took him back safe and sound.
- Rats, I'm a man of few words, but a man of many riddles.
- So riddle me this: what is it that is always coming, but never arrives?
- We ain't tuned in on the riddle bit, chief.
- What is it that is always coming, but never arrives?
- Tomorrow. But when it arrives, it is today.
- And today, my dear rodents should prove to be most memorable.
- And that's all you can tell us, Your Majesty?
- It is exactly as I have explained.
- A sinister humoresque in mask and tights, some other scoundrels, Batman and Robin being captured.
[...]