Repository: yt-dlp
Issue: Seznam zprávy is broken
Labels: site-bug

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

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

### Checklist

- [X] I'm reporting a broken site
- [X] I've verified that I'm running yt-dlp version **2022.09.01** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [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 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

Czechia

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

Videos at Seznam zprávy cannot be downloaded (BTW: even Video Download Helper browser extension fails, and that one is usually better at sites that do not work with ut-dlp). Sample url is here:

    https://www.seznamzpravy.cz/clanek/porady-stastne-pondeli-jindricha-sidla-7-sezona-stastna-krizovatka-povoli-priste-fiala-svatby-stejnopohlavnich-paru-214351

I see it as supported at line 1169 and 1170 here: https://github.com/yt-dlp/yt-dlp/blob/master/supportedsites.md?plain=1


### 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] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', 'https://www.seznamzpravy.cz/clanek/porady-stastne-pondeli-jindricha-sidla-7-sezona-stastna-krizovatka-povoli-priste-fiala-svatby-stejnopohlavnich-paru-214351']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version 2022.09.01 [5d7c7d6] (pip)
[debug] Python 3.10.4 (CPython 64bit) - Linux-5.15.0-47-generic-x86_64-with-glibc2.35 (glibc 2.35)
[debug] Checking exe version: ffmpeg -bsfs
[debug] Checking exe version: ffprobe -bsfs
[debug] exe versions: ffmpeg 4.4.2 (setts), ffprobe 4.4.2, rtmpdump 2.4
[debug] Optional libraries: Cryptodome-3.11.0, brotli-1.0.9, certifi-2020.06.20, mutagen-1.45.1, pyxattr-0.7.2, secretstorage-3.3.1, sqlite3-2.6.0, websockets-10.3
[debug] Proxy map: {}
[debug] Loaded 1670 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: 2022.09.01, Current version: 2022.09.01
yt-dlp is up to date (2022.09.01)
[debug] [SeznamZpravyArticle] Extracting URL: https://www.seznamzpravy.cz/clanek/porady-stastne-pondeli-jindricha-sidla-7-sezona-stastna-krizovatka-povoli-priste-fiala-svatby-stejnopohlavnich-paru-214351
[SeznamZpravyArticle] 214351: Downloading webpage
[download] Downloading playlist: Šťastná křižovatka Anděl je místem, kam Václav Dolejší chodí hledat odpovědi na všechny otázky. Podívejte se na satiru z produkce Šťastného pondělí.
[SeznamZpravyArticle] Playlist Šťastná křižovatka Anděl je místem, kam Václav Dolejší chodí hledat odpovědi na všechny otázky. Podívejte se na satiru z produkce Šťastného pondělí.: Downloading 0 videos of 0
[download] Finished downloading playlist: Šťastná křižovatka Anděl je místem, kam Václav Dolejší chodí hledat odpovědi na všechny otázky. Podívejte se na satiru z produkce Šťastného pondělí.
```