And at midnight tonight, more than 400 television stations across the country plan to shut off their analog signals and begin airing only digital programming, despite a vote in Congress to delay the transition from analog to digital broadcasts until June. The major broadcast networks, including ABC, CBS, Fox, and NBC/Telemundo, have agreed that the stations they own and operate would continue to broadcast in analog until June but that affiliate stations could choose when to switch. An estimated 6.5 million households are unprepared for the “digital transition.” Elderly, Latino and low-income households are believed to be most affected.