Repository: youtube-dl
Issue: Problem with Discovery.com playlist
Labels: geo-restricted

## Please follow the guide below
- You will be asked some questions and requested to provide some information, please read them **carefully** and answer honestly
- Put an `x` into all the boxes [ ] relevant to your _issue_ (like that [x])
- Use _Preview_ tab to see how your issue will actually look like

---
### Make sure you are using the _latest_ version: run `youtube-dl --version` and ensure your version is _2016.08.13_. If it's not read [this FAQ entry](https://github.com/rg3/youtube-dl/blob/master/README.md#how-do-i-update-youtube-dl) and update. Issues with outdated version will be rejected.
- [ x] I've **verified** and **I assure** that I'm running youtube-dl **2016.08.13**
### Before submitting an _issue_ make sure you have:
- [x ] At least skimmed through [README](https://github.com/rg3/youtube-dl/blob/master/README.md) and **most notably** [FAQ](https://github.com/rg3/youtube-dl#faq) and [BUGS](https://github.com/rg3/youtube-dl#bugs) sections
- [ x] [Searched](https://github.com/rg3/youtube-dl/search?type=Issues) the bugtracker for similar issues including closed ones
### What is the purpose of your _issue_?
- [ x] Bug report (encountered problems with youtube-dl)
- [ ] Site support request (request for adding support for a new site)
- [ ] Feature request (request for a new functionality)
- [ ] Question
- [ ] Other

---
### The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your _issue_

---
### If the purpose of this _issue_ is a _bug report_, _site support request_ or you are not completely sure provide the full verbose output as follows:

Add `-v` flag to **your command line** you run youtube-dl with, copy the **whole** output and insert it here. It should look similar to one below (replace it with **your** log inserted between triple ```):

```
michael$ youtube-dl -F http://www.discovery.com/tv-shows/frozen-planet/videos/
[Discovery] videos: Downloading JSON metadata
ERROR: An extractor error has occurred. (caused by KeyError(u'playlist',)); 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.
keybounceMBP:Nightly michael$ youtube-dl -v -F http://www.discovery.com/tv-shows/frozen-planet/videos/
[debug] System config: []
[debug] User config: [u'-o', u'%(title)s.%(ext)s', u'-f', u'\nbest[ext=mp4][height>431][height<=480]/\nbestvideo[ext=mp4][height=480]+bestaudio[ext=m4a]/\nbest[ext=mp4][height>340][height<=431]/\nbestvideo[ext=mp4][height>360][height<=576]+bestaudio/\nbest[height>340][height<=576]/\nbestvideo[height>360][height<=576]+bestaudio/\nbestvideo[height=360]+bestaudio/\nbest[ext=mp4][height>=280][height<=360]/\nbest[height<=576]/\nworst', u'--write-sub', u'--write-auto-sub', u'--sub-lang', u'en,enUS', u'--sub-format', u'srt/ass/best', u'--embed-subs', u'--recode-video', u'mp4', u'--mark-watched']
[debug] Command-line args: [u'-v', u'-F', u'http://www.discovery.com/tv-shows/frozen-planet/videos/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.08.13
[debug] Python version 2.7.5 - Darwin-13.4.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.1.1, ffprobe 3.1.1, rtmpdump 2.4
[debug] Proxy map: {}
[Discovery] videos: Downloading JSON metadata
ERROR: An extractor error has occurred. (caused by KeyError(u'playlist',)); 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 "/Users/michael/bin/youtube-dl/youtube_dl/extractor/common.py", line 347, in extract
    return self._real_extract(url)
  File "/Users/michael/bin/youtube-dl/youtube_dl/extractor/discovery.py", line 73, in _real_extract
    for idx, video_info in enumerate(info['playlist']):
KeyError: u'playlist'
Traceback (most recent call last):
  File "/Users/michael/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 691, in extract_info
    ie_result = ie.extract(url)
  File "/Users/michael/bin/youtube-dl/youtube_dl/extractor/common.py", line 353, in extract
    raise ExtractorError('An extractor error has occurred.', cause=e)
ExtractorError: An extractor error has occurred. (caused by KeyError(u'playlist',)); 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.
```

This was another attempt to grab the Frozen Planet clips.