The U.S. Department of Agriculture announced six grants totaling more than $2.5 million Wednesday as part of its Public Television Digital Transition Grant program. “These investments will help public television stations serving substantially rural communities make the transition to digital broadcasts,” said USDA Deputy Under Secretary for Rural Development Patrice Kunesh, who announced the grants in Bethel, Alaska. The FCC required all broadcasters to convert full-power transmitters to digital signals by June 2009, but stations have until 2015 to convert repeaters and low-power TV signals. The largest grant, $750,000, goes to the West Virginia Educational Broadcasting Authority. The network will convert its television production studio in Charleston from analog to HD digital.