Here is the video:
I have looked the spin offs and water/oxygen recycling came from the Apollo Program. I think he was talking about Apollo as a major step to developing water and oxygen recycling that eventually led us to the moon. I could be mistaken since my english is not that good. Anyone has a better idea?
That's a very "cherry-picked" extract from the discussion. If you want to hear the whole thing you can watch it on BBC iPlayer at
http://www.bbc.co.uk/iplayer/episode/b06sg98k/stargazing-live-series-6-2-brit-in-space - if it's available in your country. Jump to about 37:30 for the relevant section.
What he was talking about was using the ISS as a platform to learn how to survive for
long periods in space, to develop the technologies needed to go
back to the moon, and onwards to Mars. The Apollo missions took all the consumables (air, water, food etc.) they needed for the short time they were in space. Going back to the moon, we'll want to stay much longer, and eventually set up permanent bases, therefore we need to figure out how to recycle as much as possible.
Be very wary of any short clip from what's obviously a much longer interview or conversation, as they can easily be manipulated to promote any message you want to. I dare say I could find clips of many prominent people, celebrities, politicians or whatever, which could be cut to make them sound like they were saying whatever I wanted. It's extremely dishonest, but unfortunately a common practice...
