AETN's hours of operation gradually expanded over time to 24 hours a day, seven days a week as programming for general audiences was added during the evenings and on weekends. Much of south-central Arkansas was underserved by PBS programming from AETN (receiving only stations from nearby transmitters) until KETZ in El Dorado signed on the air on May 20, 2006. The five analog transmitters eventually converted to digital by mid-2009, joining KETZ (which had operated only a digital signal from launch), as part of the national digital transition.