Keeping an Eye on Technology Futures, No Hidden Agendas, New Attitudes, No Platitudes!
Discovery Channel has a 3-episode series: "2057 - The Body, The City, and The World". Each episode is about 45 minutes. This may be the first broadly disseminated video series to look out so far into the future. It was brought to my attention by fellow Futurist John Smart (yes, that's his name, and he's one of the smartest people I've met).
Here's a quick summary of what you'll see on the videos:
"To compete with oil or coal, solar panels need an efficiency of 50% or more."
"It is 10 times lighter, and 100 times stronger than steel. It is called a carbon nanotube."