diff --git a/yt_dlp/extractor/rtp.py b/yt_dlp/extractor/rtp.py
index 26aec2e4cc..26f736f27c 100644
--- a/yt_dlp/extractor/rtp.py
+++ b/yt_dlp/extractor/rtp.py
@@ -1,22 +1,27 @@
 import base64
-import json
 import re
 import urllib.parse
 
 from .common import InfoExtractor
-from ..utils import js_to_json
+from ..utils import ExtractorError, determine_ext, join_nonempty
+
+
+def decode_b64_url(code):
+    decoded_url = re.match(r'[^[]*\[([^]]*)\]', code).groups()[0]
+    return base64.b64decode(
+        urllib.parse.unquote(re.sub(r'[\s"\',]', '', decoded_url)),
+    ).decode('utf-8')
 
 
 class RTPIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?rtp\.pt/play/(?:(?:estudoemcasa|palco|zigzag)/)?p(?P<program_id>[0-9]+)/(?P<id>[^/?#]+)'
+    _VALID_URL = r'https?://(?:(?:(?:www\.)?rtp\.pt/play/(?P<subarea>.*/)?p(?P<program_id>[0-9]+)/(?P<episode_id>e[0-9]+/)?)|(?:arquivos\.rtp\.pt/conteudos/))(?P<id>[^/?#]+)/?'
     _TESTS = [{
-        'url': 'http://www.rtp.pt/play/p405/e174042/paixoes-cruzadas',
-        'md5': 'e736ce0c665e459ddb818546220b4ef8',
+        'url': 'https://www.rtp.pt/play/p9165/e562949/por-do-sol',
         'info_dict': {
-            'id': 'e174042',
-            'ext': 'mp3',
-            'title': 'Paixões Cruzadas',
-            'description': 'As paixões musicais de António Cartaxo e António Macedo',
+            'id': 'por-do-sol',
+            'ext': 'mp4',
+            'title': 'Pôr do Sol Episódio 1 - de 16 Ago 2021',
+            'description': 'Madalena Bourbon de Linhaça vive atormentada pelo segredo que esconde desde 1990. Matilde Bourbon de Linhaça sonha fugir com o seu amor proibido. O en',
             'thumbnail': r're:^https?://.*\.jpg',
         },
     }, {
@@ -30,76 +35,82 @@ class RTPIE(InfoExtractor):
             'thumbnail': r're:^https?://.*\.jpg',
         },
     }, {
-        'url': 'http://www.rtp.pt/play/p831/a-quimica-das-coisas',
+        'url': 'https://www.rtp.pt/play/p831/e205093/a-quimica-das-coisas',
         'only_matching': True,
     }, {
-        'url': 'https://www.rtp.pt/play/estudoemcasa/p7776/portugues-1-ano',
+        'url': 'https://www.rtp.pt/play/estudoemcasa/p7776/e500050/portugues-1-ano',
         'only_matching': True,
     }, {
-        'url': 'https://www.rtp.pt/play/palco/p13785/l7nnon',
+        'url': 'https://www.rtp.pt/play/palco/p9138/jose-afonso-traz-um-amigo-tambem',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.rtp.pt/play/p510/e798152/aleixo-fm',
         'only_matching': True,
     }]
 
-    _RX_OBFUSCATION = re.compile(r'''(?xs)
-        atob\s*\(\s*decodeURIComponent\s*\(\s*
-            (\[[0-9A-Za-z%,'"]*\])
-        \s*\.\s*join\(\s*(?:""|'')\s*\)\s*\)\s*\)
-    ''')
-
-    def __unobfuscate(self, data, *, video_id):
-        if data.startswith('{'):
-            data = self._RX_OBFUSCATION.sub(
-                lambda m: json.dumps(
-                    base64.b64decode(urllib.parse.unquote(
-                        ''.join(self._parse_json(m.group(1), video_id)),
-                    )).decode('iso-8859-1')),
-                data)
-        return js_to_json(data)
-
     def _real_extract(self, url):
         video_id = self._match_id(url)
 
         webpage = self._download_webpage(url, video_id)
-        title = self._html_search_meta(
-            'twitter:title', webpage, display_name='title', fatal=True)
 
-        f, config = self._search_regex(
-            r'''(?sx)
-                (?:var\s+f\s*=\s*(?P<f>".*?"|{[^;]+?});\s*)?
-                var\s+player1\s+=\s+new\s+RTPPlayer\s*\((?P<config>{(?:(?!\*/).)+?})\);(?!\s*\*/)
-            ''', webpage,
-            'player config', group=('f', 'config'))
+        # Remove comments from webpage source
+        webpage = re.sub(r'(?s)/\*.*\*/', '', webpage)
+        webpage = re.sub(r'(?m)(?:^|\s)//.*$', '', webpage)
 
-        config = self._parse_json(
-            config, video_id,
-            lambda data: self.__unobfuscate(data, video_id=video_id))
-        f = config['file'] if not f else self._parse_json(
-            f, video_id,
-            lambda data: self.__unobfuscate(data, video_id=video_id))
+        title = self._html_search_regex(r'<title>(.+?)</title>', webpage, 'title', default='')
+        # Replace irrelevant text in title
+        title = title.replace(' - RTP Play - RTP', '') or self._html_search_meta('twitter:title', webpage)
 
-        formats = []
-        if isinstance(f, dict):
-            f_hls = f.get('hls')
-            if f_hls is not None:
-                formats.extend(self._extract_m3u8_formats(
-                    f_hls, video_id, 'mp4', 'm3u8_native', m3u8_id='hls'))
+        if 'Este episódio não se encontra disponí' in title:
+            raise ExtractorError('Episode unavailable', expected=True)
 
-            f_dash = f.get('dash')
-            if f_dash is not None:
-                formats.extend(self._extract_mpd_formats(f_dash, video_id, mpd_id='dash'))
+        part = self._html_search_regex(r'section\-parts.*<span.*>(.+?)</span>.*</ul>', webpage, 'part', default=None)
+        title = join_nonempty(title, part, delim=' ')
+
+        # Get file key
+        file_key = self._search_regex(r'\s*fileKey: "([^"]+)",', webpage, 'file key - open', default=None)
+        if file_key is None:
+            self.write_debug('url: obfuscated')
+            file_key = self._search_regex(r'\s*fileKey: atob\( decodeURIComponent\((.*)\)\)\),', webpage, 'file key')
+            url = decode_b64_url(file_key) or ''
         else:
-            formats.append({
-                'format_id': 'f',
-                'url': f,
-                'vcodec': 'none' if config.get('mediaType') == 'audio' else None,
-            })
+            self.write_debug('url: clean')
+            url = file_key
+
+        if 'mp3' in url:
+            full_url = 'https://cdn-ondemand.rtp.pt' + url
+        elif 'mp4' in url:
+            full_url = f'https://streaming-vod.rtp.pt/dash{url}/manifest.mpd'
+        else:
+            full_url = None
+
+        if not full_url:
+            raise ExtractorError('No valid media source found in page')
+
+        poster = self._search_regex(r'\s*poster: "([^"]+)"', webpage, 'poster', fatal=False)
+
+        # Finally send pure JSON string for JSON parsing
+        full_url = full_url.replace('drm-dash', 'dash')
+        ext = determine_ext(full_url)
+
+        if ext == 'mpd':
+            # Download via mpd file
+            self.write_debug('formats: mpd')
+            formats = self._extract_mpd_formats(full_url, video_id)
+        else:
+            self.write_debug('formats: ext={ext}')
+            formats = [{
+                'url': full_url,
+                'ext': ext,
+            }]
 
         subtitles = {}
-
-        vtt = config.get('vtt')
+        vtt = self._search_regex(r'\s*vtt: (.*]]),\s+', webpage, 'vtt', default=None)
         if vtt is not None:
-            for lcode, lname, url in vtt:
-                subtitles.setdefault(lcode, []).append({
+            vtt_object = self._parse_json(vtt.replace("'", '"'), full_url)
+            self.write_debug(f'vtt: {len(vtt_object)} subtitles')
+            for lcode, lname, url in vtt_object:
+                subtitles.setdefault(lcode.lower(), []).append({
                     'name': lname,
                     'url': url,
                 })
@@ -109,6 +120,6 @@ def _real_extract(self, url):
             'title': title,
             'formats': formats,
             'description': self._html_search_meta(['description', 'twitter:description'], webpage),
-            'thumbnail': config.get('poster') or self._og_search_thumbnail(webpage),
+            'thumbnail': poster or self._og_search_thumbnail(webpage),
             'subtitles': subtitles,
         }