National Public Radio: California is about to become the first state to regulate the amount of energy used by flat screen TVs. According to the state energy commission, flat screens account for up to 10 percent of household energy use. But some retailers say the proposed regulations could put them out of business. NPR’s Ina Jaffe reports. INA JAFFE: It doesn’t matter whether you’re using your flat screens to watch nature documentaries… (Soundbite of TV broadcast of lion …