As of today, the government says those converter boxes you were asked to buy last year will be absolutely necessary for households that still get television reception through an antenna.
According to the usa.gov site about Digital Television (DTV), coupons are still available for eligible households.
It typically takes nine business days to process and mail the coupons, and they will expire within 90 days of the date they are mailed. You should also call ahead to confirm availability of coupon-eligible converter boxes on the day you plan to shop.
If you or other family members still have questions, you can also call 1-888-CALL-FCC (voice) or 1-888-TELL-FCC (TTY).