if mgid is None:
url_parts = self._search_regex(self._CUSTOM_URL_REGEX, webpage, 'episode_id')
video_type, episode_id = url_parts.split('/', 1)
if mgid is None:
url_parts = self._search_regex(self._CUSTOM_URL_REGEX, webpage, 'episode_id')
video_type, episode_id = url_parts.split('/', 1)