The revival of "AT40" premiered the weekend of March 28, 1998, one week after Westwood One finally cancelled the three countdowns Kasem was hosting for them after four weeks without him. Chancellor also brought Kasem's AC countdowns to their network, with both now being branded as "American Top 20" (see Spin-off programming below). Following the merger between Chancellor/AMFM and Clear Channel Communications (the predecessor of what is now iHeartMedia) in 1999, "AT40" and other syndicated shows from AMFM Radio Networks were transferred into Premiere Radio Networks, which continues to syndicate the show as of today.