"Find Out Next Time!"

At the end of an episode of a show, usually on a Cliff Hanger ending, a narrator poses a few questions and promises alert viewers that the answers will be revealed in the next exciting episode.

May or may not be placed at the end of an "On the Next..." trailer.

See also To Be Continued. Contrast To Be Continued Right Now.

Anime
"Narrator: A new evil has revealed its face. Who are these mysterious enemies? And do Gohan and Krillin stand a chance? The answers to these questions will be be revealed... right now: Zarbon, Dadoria, Freeza and Oh. My. No! Krillin: Wait, wha- [end tune]"
 * The dub of Dragonball Z always ended its next episode previews with "Find out next time on Dragon Ball Z!"
 * Naturally The Abridged Series, if they use it, parody it.

Comic Books

 * A handful of Tintin comics ended like this. One of them ended with Tintin himself telling the readers to buy his next comic and discover the resolution.

Live Action TV

 * Soap had their narrator, Rod Roddy, do this at the end of every episode.
 * How will Batman survive? Find out tomorrow, same bat-time, same bat-channel!

Western Animation
"Narrator: Will Bullwinkle be able to extricate himself? Bullwinkle: I will as soon as I get loose!"
 * The Rocky and Bullwinkle narrator did this for every Cliff Hanger, with joke next-episode titles. Sometimes played with:

"Narrator: Is this the end of Bugs Bunny? Will he be dashed to bits on the jagged rocks below?!? Bugs Bunny: (dragging a hogtied Sam behind him) Is he doomed to utter destruction? Will he be rendered non compos mentis? Eh, he don't know me very well, do he?"
 * Spoofed on the Looney Tunes short "Hare Trigger". The cartoon ends with Bugs Bunny tied and suspended over a bridge as Yosemite Sam cuts the rope.