HDNet featured lots of concerts 'cause backer Mark Cuban loves music. Now reconfigured as AXS TV - with Ryan Seacrest, concert promoter AEG and talent agency CAA as partners - the high-def channel will be "your home for music festivals," kicking off today through Sunday with highlights from Coachella and next weekend with Stagecoach, "California's Country Music Festival." New Orleans' "Jazz F est" rules May 1 to 4, with Santana, Phish, Christina Aguilera, Arcade Fire, Vampire Weekend and Robert Plant. On DirecTV 340, Dish 167, Verizon FiOS 569, Comcast Xfinity 897.