Use _sort_formats util

youtube_dl/extractor/npo.py

@@ -231,9 +231,7 @@ class ONIE(NPOIE):
         for result in results:
             formats.extend(self._extract_formats_by_product_id(result, video_id))
 
-        if not formats:
-            raise ExtractorError('Could not find a POMS product id in the provided URL, '
-                                 'perhaps because all stream URLs are DRM protected.')
+        self._sort_formats(formats)
 
         return {
             'id': video_id,