public static function getAllEpisodesFromDatabase($dbConn)
 {
     $episodeIds = readFromDatabase::readEntireColumnFromTable($dbConn, array(self::ID_COLUMN_NAME), self::TABLE_NAME);
     $episodes = array();
     if (count($episodeIds)) {
         foreach ($episodeIds as $episodeRow) {
             $episode = new Episode($dbConn, $episodeRow[self::ID_COLUMN_NAME]);
             $episodes[$episode->getId()] = $episode;
         }
     }
     return $episodes;
 }