public function parseFromXml($strXml)
{
$xml = simplexml_load_string($strXml);
if (isset($xml->LiveRecord)) {
foreach ($xml->LiveRecord as $record) {
$liveRecord = new LiveChannelHistory();
$liveRecord->parseFromXmlNode($record);
$this->liveRecordList[] = $liveRecord;
}
}
}