Repository: yt-dlp
Issue: extractor/Smotrim fix for site updates
Labels: site-bug,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm reporting that yt-dlp is broken on a **supported** site
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [X] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

russia

### Provide a description that is worded well enough to be understood

.

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
yt-dlp -vU https://smotrim.ru/channel/4
[debug] Command-line config: ['-vU', 'https://smotrim.ru/channel/4']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2024.12.13 from yt-dlp/yt-dlp [542166962]
[debug] Lazy loading extractors is disabled
[debug] Python 3.12.8 (CPython x86_64 64bit) - Linux-6.12.3-amd64-x86_64-with-glibc2.40 (OpenSSL 3.3.2 3 Sep 2024, glibc 2.40)
[debug] exe versions: ffmpeg 7.1-3 (setts), ffprobe 7.1-3
[debug] Optional libraries: Cryptodome-3.20.0, certifi-2024.08.30, mutagen-1.47.0, requests-2.32.3, sqlite3-3.46.1, urllib3-2.2.3, websockets-13.0
[debug] Proxy map: {}
[debug] Request Handlers: urllib, requests, websockets
[debug] Loaded 1837 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: stable@2024.12.13 from yt-dlp/yt-dlp
yt-dlp is up to date (stable@2024.12.13 from yt-dlp/yt-dlp)
[generic] Extracting URL: https://smotrim.ru/channel/4
[generic] 4: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] 4: Extracting information
[debug] Looking for embeds
ERROR: Unsupported URL: https://smotrim.ru/channel/4
Traceback (most recent call last):
  File "/srv/git/yt-dlp/yt_dlp/YoutubeDL.py", line 1624, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/srv/git/yt-dlp/yt_dlp/YoutubeDL.py", line 1759, in __extract_info
    ie_result = ie.extract(url)
                ^^^^^^^^^^^^^^^
  File "/srv/git/yt-dlp/yt_dlp/extractor/common.py", line 742, in extract
    ie_result = self._real_extract(url)
                ^^^^^^^^^^^^^^^^^^^^^^^
  File "/srv/git/yt-dlp/yt_dlp/extractor/generic.py", line 2553, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://smotrim.ru/channel/4
```