Wednesday's MEDICINE BALL CARAVAN on KRVS (11am-noon CST on 88.7FM local or krvs.org everywhere) hits favorites from The Cold Stares, Double Dog, Bas Clas, Grant Dermody, Dirk Powell, Leyla McCalla, Dougie & the Tone Drifters and Lost Bayou Ramblers. Also: saluting the William Shatner-ization of outer space travel and more. Let your radio turn YOU on.