@ -91,7 +91,7 @@ class MTVServicesInfoExtractor(InfoExtractor):
formats.extend([{
'ext': 'flv' if new_url.startswith('rtmp') else ext,
'url': new_url,
'format_id': '-'.join([kind, rendition.get('bitrate')]),
'format_id': '-'.join(filter(None, [kind, rendition.get('bitrate')])),
'width': int(rendition.get('width')),
'height': int(rendition.get('height')),
} for kind, new_url in new_urls.items()])