For pastors: if you’re considering having us in to do a missions window at your church, I encourage you to check out this brief (under two minutes) video:
The controls work just like a VCR–hit the play button (>) to begin the video.
If you can’t get it to work (or can’t even see the arrow), download the latest Flash plugin for your browser.
That’s basically what we do for a missions window (without the soundtrack and the cool graphics effects).
If you have us in to do the whole service, I generally do the missions window and then preach a practical message for your people unless you ask me to do otherwise (some pastors prefer that I share about missions or about Chi Alpha the entire time).