The last major TV stations that are still broadcasting in analog will turn those signals off Friday and go all digital, and this time, they really mean it. The original Feb. 17 deadline for the shutdown was delayed by the Obama administration after funding ran out for $40 coupons the government offered to help people buy converter boxes for old TVs. Now officials say the country is much better prepared than in February, though they still expect some viewers to be confused. About 3.1 million U.S. homes were unprepared to receive digital signals as of late last month.
