Bitchute: Failure to report "NSFW" videos when listing a channel

[joncampbell123]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.03.08
• 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: [u'--dump-json', u'-v', u'https://www.bitchute.com/channel/hQl9oMSgUyMX/']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.03.08
[debug] Python version 2.7.17 (CPython) - Linux-4.19.82-isptv-x86_64-with-glibc2.2.5
[debug] exe versions: ffmpeg 4.1.5, ffprobe 4.1.5
[debug] Proxy map: {}
[debug] Default format spec: bestvideo+bestaudio/best

Description

youtube-dl when directed at a channel fails to list any videos marked NSFW. Use the --dump-json and URL given in the verbose dump and notice that episode 142 (the one marked NSFW) does not appear in the output.

According to Firefox's developer console, and confirmed with some local modding, it is possible to list all videos including NSFW if you add ?showall=1 to the end of the url. I can confirm adding it to the end of channel_url at line 107 in youtube_dl/extractor/bitchute.py enables listing NSFW videos.