From the HD Programming Masters thread
CBS Sports will bring viewers all the color, artistry and drama inherent to the world's most prestigious golf tournament and first major of the year on the CBS Television HD Network on Thursday, April 6 and Friday, April 7 (4:00-7:00 PM, ET, each day) and Saturday, April 8 (3:30-7:00 PM, ET) and Sunday, April 9 (2:30-7:00 PM, ET) live from Augusta National Golf Club in Augusta, Ga. The third and final rounds of the Masters will be broadcast simultaneously in standard definition by CBS Sports on the analog CBS Television Network.
Now I don't know if WHBF will carry it or not. But its certainly available to them. Its also available if you have Universal HD in addition to USA Standard def.
During the NCAA basketball tournament, a few times the game that was the Digital Broadcast did not always match the Analog. I recall have a split screen on my TV one night at the end a couple of close ballgames which were ending at the same time. My son had Picture in a Picture showing two games, one on Digital WHBF and one on Analog WHBF. (they probably don't even know they did it) So they definitely have the capability to show one program analog and a different digital if they don't open up the 4-2.