Don’t touch that dial Prodigal FM yakker Jay Severin will return to 96.9 FM beginning Jan. 3, and will broadcast his new, nationally syndicated show in the 7 to 10 p.m. slot. Severin, the former afternoon drive host, was yanked off the air several months ago after he signed a national syndication deal with Infinity Broadcasting. But yesterday, Severin’s agent, George Tobia, told the Track he had reached an agreement for Severin to broadcast his show on WTKK for at least a year. “We’re really excited to be back,” he said. When Severin returns to the station, he’ll bump Laura...