Having invested many, many hours getting the video out to work on my recently purchased Orange Pi Zero kit, I'd like to leave this heads up for the next person having trouble with video out. In my case, none of the advice I could find in this forum or elsewhere seemed to make any difference. If you find yourself in a similar situation, here are some things you should know.
The latest Armbian images for the OrangePi Zero enable composite video out by default. It should just work. (Well