BBC Radio has a feature on their website called something like "Teaching English with Songs". They'll take a few lines from a current popular song (something fairly simple and straightforward, where you can hear the words), and make a little lesson out of it.
They post the lyrics, explain whatever grammar point and/or cultural notion that applies, and post the corresponding audio clip from the song.
This would be fun, if it's doable. (I know that licensing and copyright is an issue.)
Likewise would be using short scenes from our favorite K-Dramas. Very, very cool indeed. (After all...this is where a lot of us starting picking up Korean words in the first place )