Then there is Cosmos and Naked science which have always kept my passion for science on the edge. Breakout which had some amazing stories of prison break. Air Crash Investigation, one of my favourites, showed the science involved in knowing the cause of an airplane crash, a thing I would have never known without this channel.
I could go on forever and ever but the list wont end. National Geographic is not just a channel but an experience. I urge you all to watch this channel and experience of the wilderness, science, engineering marvels, crime etc. all at the same time.