I saw it first on the econfuture site by Martin Ford, author of "The Lights in the Tunnel". It is being discussed on Reddit, and people there have started mentioning a "basic income" as one possible response.
While I like the basic income idea, I also collect other approaches in an essay called Beyond A Jobless Recovery: A heterodox perspective on 21st century economics. Beyond a basic income for the exchange economy, those possible approaches include gift economy, subsistence production, planned economy, and more — including many unpleasant alternatives like expanding prisons or fighting wars as we are currently doing. Marshall Brain's writings like Robotic Nation and Manna have inspired my own work.
I made my own video version of the concept around 2010, as a parable called "The Richest Man in the World: A parable about structural unemployment and a basic income". At 1:02 in the video I made, there is a picture of a robot near a sign "Humans Need Not Apply". The text there is: "Soon everyone was out of work. The politicians and their supporters said the solution was to lower takes and cut social benefits to promote business investment. They tried that, but the robots still got all the jobs."
Here is a p2presearch post I made in 2009 pulling together a lot of links to robot videos: "[p2p-research] Robot videos and P2P implications (was Re: A thirty year future...)". It's great to see more informative videos on this topic. CGP Grey's video is awesome in the way he puts it all together. Makes we wish I had done one like that with all those snippets of stuff I've seen over the years.