I'd like to see a sticky thread, either in General AMV or General Anime, in which users can request specific scenes they remember from the last time they watched a series (to use in their AMVs), which are then put onto a list, so that other users who are deciding anime to watch can choose from the list and keep their eyes peeled for the scene. Also, if you know the episode where a scene occurs, you can reply to the thread with that information.
Possible names for this thread:
You Know The Scene Where... (carries a healthy dose of TV Tropes charm)
What episode was *this*? (inspired by a similar thread on the Alderac Entertainment forum)
When did *this* happen? (more original-sounding variant of the above)
Scene Requests Thread (simple and effective, but kinda boring)