Answers tomorrow night! Same time, same channel.
7 seconds sound clip from Batman (1966) - Hi Diddle Riddle (S1E1) TV Series.
You can hear this line at 00:24:14 in the Blu-ray version of the movie.
Quote context
[...]
- At last. At last, Boy Wonder Robin.
- You and the Caped Crusader both... are set for the final bow.
- Will Robin escape? Can Batman find him in time?
- Is this the ghastly end for our Dynamic Duo?
- Answers tomorrow night! Same time, same channel.
- One hint: the worst is yet to come.
- In the previous Bat-adventure we saw a prime minister's exploding cake...
- With a puzzling message from that rascal, The Riddler.
- The Dynamic Duo pinned The Riddler's ears back.
[...]