Error for videos from https://www.rtp.pt/play/

[alsilva28]

Checklist

• I'm reporting a broken site support issue
• [x ] I've verified that I'm running youtube-dl version 2020.09.06
• [x ] 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 bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.rtp.pt/play/p5057/3-mulheres', '--verbose']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2020.09.06
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: none
[debug] Proxy map: {}
[RTP] 3-mulheres: Downloading webpage
ERROR: 3-mulheres: Failed to parse JSON  (caused by ValueError("Expecting ',' delimiter: line 11 column 11 (char 715)",)); 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 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpquf06fea\build\youtube_dl\extractor\common.py", line 899, in _parse_json
  File "C:\Python\Python34\lib\json\__init__.py", line 318, in loads
  File "C:\Python\Python34\lib\json\decoder.py", line 343, in decode
  File "C:\Python\Python34\lib\json\decoder.py", line 359, in raw_decode
ValueError: Expecting ',' delimiter: line 11 column 11 (char 715)
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpquf06fea\build\youtube_dl\extractor\common.py", line 899, in _parse_json
  File "C:\Python\Python34\lib\json\__init__.py", line 318, in loads
  File "C:\Python\Python34\lib\json\decoder.py", line 343, in decode
  File "C:\Python\Python34\lib\json\decoder.py", line 359, in raw_decode
ValueError: Expecting ',' delimiter: line 11 column 11 (char 715)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpquf06fea\build\youtube_dl\YoutubeDL.py", line 797, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpquf06fea\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpquf06fea\build\youtube_dl\extractor\rtp.py", line 37, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpquf06fea\build\youtube_dl\extractor\common.py", line 903, in _parse_json
youtube_dl.utils.ExtractorError: 3-mulheres: Failed to parse JSON  (caused by ValueError("Expecting ',' delimiter: line 11 column 11 (char 715)",)); 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.

Description

Tried downloading file for the first time from https://www.rtp.pt/play/ as it is shown as a supported site, received error message above.

[adrianheine]

This is a duplicate of #23707 and hopefully fixed by #23877.