Analog broadcast TV signals will stop in February 1999

[glatt]

http://www.ntia.doc.gov/dtvcoupon/index.html

Between Jan. 1, 2008, and March 31, 2009, all U.S. households will be eligible to request up to two coupons, worth $40 each, to be used toward the purchase of up to two, digital-to-analog converter boxes, while the initial $990 million allocated for the program is available. If NTIA requests the additional $510 million already authorized by Congress, then coupon requests during this "contingent period" will be limited exclusively to over-the-air households. Details on how to apply for the Coupon Program and our 1-800 number will be established later in 2007.

I can't find an actual application form for these coupons/vouchers, so it looks like even though there is almost a Billion dollars in funding for it, the program isn't off the ground yet.