KBCA first signed on the air on June 1, 2005 as a WB affiliate. At the time of KBCA's sign-on, The WB Television Network had a group of cable-only stations in markets below the top 99 television media markets in the United States, called The WB 100+ Station Group. Since the WB 100+ was created before digital television was easily available in the United States, most WB 100+ stations were only available on cable, with a few over-the-air broadcast stations. Prior to KBCA's sign-on, the WB was only available to local cable subscribers. During this time, the "WB station" in Alexandria was identified by two different station call letters. It was known as "KAXN" WB channel 65.