url = 'https://www.youtube.com/channel/%s/videos' % channel_id
channel_page = self._download_webpage(url, channel_id)
autogenerated = re.search(r'''(?x)
url = 'https://www.youtube.com/channel/%s/videos' % channel_id
channel_page = self._download_webpage(url, channel_id)
autogenerated = re.search(r'''(?x)