diff --git a/youtube_dl/extractor/npo.py b/youtube_dl/extractor/npo.py
index 502d276ff..7f90aa827 100644
--- a/youtube_dl/extractor/npo.py
+++ b/youtube_dl/extractor/npo.py
@@ -70,6 +70,8 @@ class NPOIE(InfoExtractor):
         page = self._download_webpage(url, slug, 'Finding productId using slug: %s' % slug)
         # TODO find out what proper HTML parsing utilities are available in youtube-dl
         next_data = page.split('<script id="__NEXT_DATA__" type="application/json">')[1].split('</script>')[0]
+        # TODO The data in this script tag feels like GraphQL, so there might be an easier way
+        #      to get the product id, maybe using a GraphQL endpoint
         next_data = json.loads(next_data)
         product_id, title, description, thumbnail = None, None, None, None
         for query in next_data['props']['pageProps']['dehydratedState']['queries']: