Repository: yt-dlp
Issue: [BR] error "Unable to extract XMLURL" (Bayerischer Rundfunk)
Labels: site-bug

### 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

DACH (Austria in my case)

### Provide a description that is worded well enough to be understood

When trying to download a documentary from BR TV site, I get an error `Unable to extract XMLURL`.
The verbose output shows the cause lies in regex parsing in `extractor/common.py` / `extractor/br.py`, see output below.

yt-dlp is at the latest version as of now:
```
yt-dlp -U                                                            1 ✘ 
Latest version: stable@2023.11.16 from yt-dlp/yt-dlp
yt-dlp is up to date (stable@2023.11.16 from yt-dlp/yt-dlp)
```

*Note:* following the link to individual episodes of the 4-part documentary opens a media player part of ARD Mediathek, which eventually works, e.g.:
https://www.ardmediathek.de/video/Y3JpZDovL2JyLmRlL3ZpZGVvLzhkNDVhYWIwLTY2NjYtNGRhMS1hNmRhLTVmOTY3ZGZlYWI0Nw

Output:
```
[ARDBetaMediathek] Extracting URL: https://www.ardmediathek.de/video/Y3JpZDovL2JyLmRlL3ZpZGVvLzhkNDVhYWIwLTY2NjYtNGRhMS1hNmRhLTVmOTY3ZGZlYWI0Nw
[ARDBetaMediathek] Y3JpZDovL2JyLmRlL3ZpZGVvLzhkNDVhYWIwLTY2NjYtNGRhMS1hNmRhLTVmOTY3ZGZlYWI0Nw: Downloading JSON metadata
[ARDBetaMediathek] 10060685: Downloading m3u8 information
[info] 10060685: Downloading 1 format(s): hls-4915
[hlsnative] Downloading m3u8 manifest
[hlsnative] Total fragments: 143
[download] Destination: Folge 1： Von links (S01⧸E01) [10060685].mp4
```

### 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 "https://www.br.de/br-fernsehen/sendungen/dokthema/die-sache-mit-israel-104.html" --verbose
[debug] Command-line config: ['https://www.br.de/br-fernsehen/sendungen/dokthema/die-sache-mit-israel-104.html', '--verbose']
[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@2023.11.16 from yt-dlp/yt-dlp [24f827875]
[debug] Python 3.11.6 (CPython x86_64 64bit) - Linux-6.6.3-1-MANJARO-x86_64-with-glibc2.38 (OpenSSL 3.1.4 24 Oct 2023, glibc 2.38)
[debug] exe versions: ffmpeg 6.1 (setts), ffprobe 6.1, rtmpdump 2.4
[debug] Optional libraries: Cryptodome-3.12.0, brotlicffi-1.1.0.0, certifi-2023.11.17, mutagen-1.47.0, requests-2.31.0, secretstorage-3.3.3, sqlite3-3.44.2, urllib3-1.26.18, websockets-10.4
[debug] Proxy map: {}
[debug] Request Handlers: urllib, requests
[debug] Loaded 1901 extractors
[BR] Extracting URL: https://www.br.de/br-fernsehen/sendungen/dokthema/die-sache-mit-israel-104.html
[BR] die-sache-mit-israel-104: Downloading webpage
ERROR: [BR] die-sache-mit-israel-104: Unable to extract XMLURL; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
  File "/usr/lib/python3.11/site-packages/yt_dlp/extractor/common.py", line 715, in extract
    ie_result = self._real_extract(url)
                ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/yt_dlp/extractor/br.py", line 87, in _real_extract
    xml_url = self._search_regex(
              ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/yt_dlp/extractor/common.py", line 1263, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
```