PBS Video Stopped Working

[wright546]

• [ x ] I've verified and I assure that I'm running youtube-dl 2018.05.09
• [ x ] At least skimmed through the README, most notably the FAQ and BUGS sections
• [ x ] Searched the bugtracker for similar issues including closed ones
• [ x ] Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser
• [ x ] Bug report (encountered problems with youtube-dl)

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[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose', u'-F', u'http://www.pbs.org/video/renaissances-ufzdl3/']
[debug] Encodings: locale US-ASCII, fs US-ASCII, out US-ASCII, pref US-ASCII
[debug] youtube-dl version 2018.05.09
[debug] Python version 2.7.14 (CPython) - FreeBSD-11.1-RELEASE-p9-amd64-64bit-ELF
[debug] exe versions: ffmpeg 3.3.2, ffprobe 3.3.2
[debug] Proxy map: {}
[debug] Using fake IP 3.51.191.85 (US) as X-Forwarded-For.
[pbs] Downloading JSON metadata
[pbs] renaissances-ufzdl3: Downloading webpage
[pbs] renaissances-ufzdl3: Downloading widget/partnerplayer page
[pbs] renaissances-ufzdl3: Downloading portalplayer page
ERROR: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "./youtube-dl/youtube_dl/YoutubeDL.py", line 792, in extract_info
    ie_result = ie.extract(url)
  File "./youtube-dl/youtube_dl/extractor/common.py", line 503, in extract
    ie_result = self._real_extract(url)
  File "./youtube-dl/youtube_dl/extractor/pbs.py", line 590, in _real_extract
    self._sort_formats(formats)
  File "./youtube-dl/youtube_dl/extractor/common.py", line 1193, in _sort_formats
    raise ExtractorError('No video formats found')
ExtractorError: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

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http://www.pbs.org/video/nova-wonders-can-we-build-a-brain-j53aqg/
http://www.pbs.org/video/renaissances-ufzdl3/
http://www.pbs.org/video/trade-uilvef/

PBS probably changed the formatting on their site, and youtube-dl can no longer find any valid video formats. youtube-dl worked perfectly on the PBS site last week, so the change PBS made must have been in the last 7 days. This has happened a couple of times in the past, #7565 and #8499.