diff --git a/yt_dlp/extractor/zdf.py b/yt_dlp/extractor/zdf.py
index 8f3f7cab3..4bef1017c 100644
--- a/yt_dlp/extractor/zdf.py
+++ b/yt_dlp/extractor/zdf.py
@@ -469,7 +469,8 @@ def _extract_entry(self, entry):
                 'title': ('titel', {str}),
                 'description': ('beschreibung', {str}),
                 'duration': ('length', {float_or_none}),
-                # TODO: seasonNumber and episodeNumber can be extracted but need to also be in ZDFIE
+                'season_number': ('seasonNumber', {int_or_none}),
+                'episode_number': ('episodeNumber', {int_or_none}),
             }))
 
     def _entries(self, data, document_id):