Repository: youtube-dl
Issue: kontakt24.tvn24.pl support request
Labels: site-support-request

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## Checklist

- [x] I'm reporting a new site support request
- [x] I've verified that I'm running youtube-dl version **2021.06.06**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that none of provided URLs violate any copyrights
- [x] I've searched the bugtracker for similar site support requests including closed ones - https://github.com/ytdl-org/youtube-dl/issues?q=kontakt24.tvn24.pl


## Example URLs

- Single video: https://kontakt24.tvn24.pl/fragment-wyburzanego-budynku-wpadl-do-mieszkania-moglo-sie-skonczyc-tragicznie,337362.html

## Description

I want to make private backup of the even important to me, before inevitable site design remove it from their website.

I see huge number of open PRs - if there is some way to help with reducing that backlog I can help a bit (I see nothing in https://github.com/ytdl-org/youtube-dl/blob/379f52a4954013767219d25099cce9e0f9401961/CONTRIBUTING.md or https://github.com/ytdl-org/youtube-dl#how-can-i-speed-up-work-on-my-issue )

## Logs

```
mateusz@grima:~/Desktop/tmp$ youtube-dl --verbose https://kontakt24.tvn24.pl/fragment-wyburzanego-budynku-wpadl-do-mieszkania-moglo-sie-skonczyc-tragicznie,337362.html
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://kontakt24.tvn24.pl/fragment-wyburzanego-budynku-wpadl-do-mieszkania-moglo-sie-skonczyc-tragicznie,337362.html']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] youtube-dl version 2021.06.06
[debug] Python version 3.8.5 (CPython) - Linux-5.4.0-74-generic-x86_64-with-glibc2.29
[debug] exe versions: ffmpeg 4.2.4, ffprobe 4.2.4
[debug] Proxy map: {}
[TVN24] fragment-wyburzanego-budynku-wpadl-do-mieszkania-moglo-sie-skonczyc-tragicznie,337362.html: Downloading webpage
ERROR: Unable to extract formats; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/home/mateusz/.local/lib/python3.8/site-packages/youtube_dl/YoutubeDL.py", line 815, in wrapper
    return func(self, *args, **kwargs)
  File "/home/mateusz/.local/lib/python3.8/site-packages/youtube_dl/YoutubeDL.py", line 836, in __extract_info
    ie_result = ie.extract(url)
  File "/home/mateusz/.local/lib/python3.8/site-packages/youtube_dl/extractor/common.py", line 534, in extract
    ie_result = self._real_extract(url)
  File "/home/mateusz/.local/lib/python3.8/site-packages/youtube_dl/extractor/tvn24.py", line 67, in _real_extract
    quality_data = extract_json('data-quality', 'formats')
  File "/home/mateusz/.local/lib/python3.8/site-packages/youtube_dl/extractor/tvn24.py", line 62, in extract_json
    self._search_regex(                                                                                                                                                                      
  File "/home/mateusz/.local/lib/python3.8/site-packages/youtube_dl/extractor/common.py", line 1012, in _search_regex                                                                        
    raise RegexNotFoundError('Unable to extract %s' % _name)                                                                                                                                 
youtube_dl.utils.RegexNotFoundError: Unable to extract formats; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
```