As Viacom prepares to split into two companies, the CBS Corporation side plans to rename its radio arm, which will become more like an “audio” arm given the new ways to deliver that content. Infinity Broadcasting, which operates 179 radio stations, will be rebranded as CBS Radio. The group will use the slogan “Broadcast….HD…Streaming….On-Demand.” The group’s name change takes it back to its roots. In 1928, CBS formed CBS Radio by purchasing 16 radio stations and forming one of the first radio networks. [B&C. Thanks, Morris]