I think most divers find any extra technical info interesting.
For non-divers it?s a bit of an unknown-unknown for them. I gave a talk to our mountaineering club about our diving survey project in France and kept in all the gas planning/mixing and logistics stuff in. Some people switched off, but there were a few who got really engrossed in it and asked loads of questions. That woke the others up.
It?s one of my biggest gripes about recent documentary film making for TV. They just dumb things down to avoid confusing idiots and over-sensationalise everything. Yes, it?s blindingly obvious that you can?t breathe water and you need a plan to get out of a problem before you run out of air. The fact that your ?air? may be safe to breathe at 70m but will kill you at 3m, or that you use the ?air? up 8x as fast at 70m isn?t obvious at all to a non-diver, hence it?s interesting.
The new paralenz camera will output the depth and temperature directly onto the video file. It is ridiculously expensive though. ?600+