PS, Batman and Robin... are dead. The Riddler.

9 seconds sound clip from Batman (1966) - When the Rat's Away the Mice Will Play (S1E12) TV Series.

You can hear this line at 00:12:36 in the Blu-ray version of the movie.

Quote context

[...]

- Thanks, Kenny. You're the best partner in crime I ever had.

- Later, on a Gotham City street corner.

- Good heavens!

- What? What is it?

- Alright, listen If Gotham City does not pay me one million dollars in cash by 10 o'clock tonight, the Queen Of Freedom Monument will be blown sky high.

- All security of its cannot stop the destruction and only I can deactivate the bomb.

- PS, Batman and Robin... are dead. The Riddler.

- That infernal devil!

- Oh, so that was his plot. To get rid of Batman and Robin and then pull off the biggest extortion caper in the history of Gotham City.

- And he might just get away with it.

- So that's his scheme, commissioner. And obviously, the city must pay for it.

[...]