PBS (check local listings) is airing Saved by the Sun, an episode that delves into the current state of solar power. Here's what the show's site says:

"Saved By the Sun" probes how innovative technologies, new business models, increasing financial incentives, and a growing grassroots commitment to solving the climate crisis are driving a renaissance in solar energy around the world. Across the U.S., solar panels are capping more and more roofs. In Germany, a "great wall" of solar panels lines the autobahn, feeding the Munich power grid. At Cal Tech, nanotechnology is spurring new solar inventions. Worldwide, solar energy is expected to be a $50 billion industry within a decade.

It's airing as I write this, but you know it will air ad-nauseum in the coming weeks and may eventually be viewable online. Be on the lookout for sheep grazing among solar panels in Germany and a pig farmer generating enough solar power to light up over 1500 homes. Be forewarned, going solar is not quite the home run everyone wants it to be. Efficiency isn't quite there yet, but advances in capturing multiple wavelengths of sunlight look to change that.

Update: Frontline is airing Hot Politics which looks into the politics behind climate change. It's a post Earth Day-palooza, folks.