I almost got into the crew behind the scenes and technology of the day aspects in detail, but I figured most people would be bored by the whole thing so I kept it light. LOL

On the upside they may have used a spring wound camera with crystal sync, so it my only have been the sound equipment that needed batteries. You can also see in several shots that they used reflectors to pump up the volume of light instead of additional electric lighting.

Still, it wouldn't have been like Les Stroud and his backpack full of equipment. It's amazing how large a "Three minute" (100ft) roll of 16mm film is and how that compares to a 60 minute HD tape or whatever Les Uses. Then again, there's the issue of batteries...