Its members obsessively track biometric, behavioral and environmental information with smartphone apps and body-monitoring devices, and perform experiments on themselves to try to improve their lives.

FORBES: On The Cover/Top Stories

Sure, there have been experiments in interactive TV -- gadgets like WebTV and modern game consoles are connected devices, and set-top boxes like the Roku and TiVo add connected components -- but most TVs in the US remain blissfully ignorant of the internet.

ENGADGET: Entelligence: The evolution of the TV

But like many market experiments, these suffer from a selection bias problem: Many of the people who want to buy or use these devices are already more environmentally conscious than average.

FORBES: Paying Attention To Energy Use