png_url = 'http://www.rtve.es/ztnr/movil/thumbnail/%s/videos/%s.png' % (self._manager, video_id)
png = self._download_webpage(png_url, video_id, 'Downloading url information')
video_url = _decrypt_url(png)
png_url = 'http://www.rtve.es/ztnr/movil/thumbnail/%s/videos/%s.png' % (self._manager, video_id)
png = self._download_webpage(png_url, video_id, 'Downloading url information')
video_url = _decrypt_url(png)