# For some weird reason, blip.tv serves a video instead of subtitles
# when we request with a common UA
req = compat_urllib_request.Request(url)
- req.add_header('Youtubedl-user-agent', 'youtube-dl')
+ req.add_header('User-Agent', 'youtube-dl')
return self._download_webpage(req, None, note=False)