public function showHistoryFeedAction()
 {
     try {
         $request = $this->getRequest();
         $current_time = time();
         $starts_epoch = $request->getParam("start", $current_time - 60 * 60 * 24);
         $ends_epoch = $request->getParam("end", $current_time);
         $startsDT = DateTime::createFromFormat("U", $starts_epoch, new DateTimeZone("UTC"));
         $endsDT = DateTime::createFromFormat("U", $ends_epoch, new DateTimeZone("UTC"));
         $historyService = new Application_Service_HistoryService();
         $shows = $historyService->getShowList($startsDT, $endsDT);
         $this->_helper->json->sendJson($shows);
     } catch (Exception $e) {
         Logging::info($e);
         Logging::info($e->getMessage());
     }
 }