ceskatelevize.cz: No video formats found

[porn]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.01.01
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

$ youtube-dl -v 'https://www.ceskatelevize.cz/porady/11473805409-buster-keaton-genius-ktereho-znicil-hollywood/'                                                   
[debug] System config: []                                                                                                                                                                                                                    
[debug] User config: []                                                                                                                                                                                                                      
[debug] Custom config: []                                                                                                                                                                                                                    
[debug] Command-line args: ['-v', 'https://www.ceskatelevize.cz/porady/11473805409-buster-keaton-genius-ktereho-znicil-hollywood/']                                                                                                          
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8                                                                                                                                                                                                              
[debug] youtube-dl version 2020.01.01                                                                                                                                                                                                                                         
[debug] Python version 3.6.9 (CPython) - Linux-4.15.0-74-generic-x86_64-with-Ubuntu-18.04-bionic                                                                                                                                                                              
[debug] exe versions: ffmpeg 3.4.6, ffprobe 3.4.6                                                                                                                                                                                                                             
[debug] Proxy map: {}                                                                                                                                                                                                                                                         
[CeskaTelevizePorady] 11473805409-buster-keaton-genius-ktereho-znicil-hollywood: Downloading webpage                                                                                                                                                                          
[CeskaTelevize] iFramePlayer.php: Downloading webpage                                                                                                                                                                                                                         
[CeskaTelevize] iFramePlayer.php: Downloading JSON metadata                                                                                                                                                                                                                   
[CeskaTelevize] iFramePlayer.php: Downloading JSON metadata                                                                                                                                                                                                                   
[CeskaTelevize] iFramePlayer.php: Downloading JSON metadata                                                                                                                                                                                                                   
[CeskaTelevize] iFramePlayer.php: Downloading JSON metadata                                                                                                                                                                                                                   
ERROR: No video formats found; 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/ikar/.local/lib/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 796, in extract_info                                                                                                                                                                                                                                                                                  
    ie_result = ie.extract(url)                                                                                                                                                                                                                                                                                                                                                            
  File "/home/ikar/.local/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 530, in extract                                                                                                                                                                                                                                                                                
    ie_result = self._real_extract(url)                                                                                                                                                                                                                                                                                                                                                    
  File "/home/ikar/.local/lib/python3.6/site-packages/youtube_dl/extractor/ceskatelevize.py", line 201, in _real_extract                                                                                                                                                                                                                                                                   
    self._sort_formats(e['formats'])                                                                                                                                                                                                                                                                                                                                                       
  File "/home/ikar/.local/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 1327, in _sort_formats                                                                                                                                                                                                                                                                         
    raise ExtractorError('No video formats found')                                                                                                                                                                                                                                                                                                                                         
youtube_dl.utils.ExtractorError: No video formats found; 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. 

Description

The download of video from ceskatelevize.cz does not work anymore. The URL:
https://www.ceskatelevize.cz/porady/11473805409-buster-keaton-genius-ktereho-znicil-hollywood/
...is playable in browser but not downloadable.

[porn]

Hey @remitamine, I see you added DRM label -> does this mean it won't be implemented? Or is there any workaround? Any related issue?

[remitamine]

There is no plan to support DRM protected videos.