Playing with Powerpoint, Greek, and Video

I'm figuring out the best ways to create short (but perhaps up to 20 minute) videos using PowerPoint. I've started using Microsoft's Office Mix, but I'm still practicing with it. It does allow me to record videos with inset webcam video of myself plus narration plus annotations.

Another option in Office 365 (and Office 2013, I believe) is to create a PowerPoint, rehearse the timings and add narrations, then use File > Export and save it as a video. Here is a 54 second one with a little music and some animations. If you know some Greek, you may actually think it's a bit humorous!

Click here or on the graphic above: Ἔρχομαι and πίνω

I've also used programs like Camtasia for screen recordings. It's more work to use this, but the results are a bit more polished. In any case, see what you think, and let me know if you have other ways for producing videos like this. Thanks.