There is a wealth of videos for Christian teachings, encouragement and apologetics. Apologetics requires a special mention. The word means to defend something, in this case the Christian faith. Some of the most intellectually invigorating debates can be found under that category. The aim of this little video section is mostly to provide a sampling of what's out there, and videos I think deserve a special mention.
Reasonable Faith is the website being run by William Lane Craig and the organization behind him.