-        thumbnail = video_info.find('.//thumbnail_url').text
-        description = video_info.find('.//description').text
-        upload_date = unified_strdate(video_info.find('.//first_retrieve').text.split('+')[0])
-        view_count = int_or_none(video_info.find('.//view_counter').text)
-        comment_count = int_or_none(video_info.find('.//comment_num').text)
-        duration = parse_duration(video_info.find('.//length').text)
-        webpage_url = video_info.find('.//watch_url').text
+
+        thumbnail = (
+            xpath_text(video_info, './/thumbnail_url') or
+            self._html_search_meta('image', webpage, 'thumbnail', default=None) or
+            video_detail.get('thumbnail'))
+
+        description = xpath_text(video_info, './/description')
+
+        timestamp = parse_iso8601(xpath_text(video_info, './/first_retrieve'))
+        if not timestamp:
+            match = self._html_search_meta('datePublished', webpage, 'date published', default=None)
+            if match:
+                timestamp = parse_iso8601(match.replace('+', ':00+'))
+        if not timestamp and video_detail.get('postedAt'):
+            timestamp = parse_iso8601(
+                video_detail['postedAt'].replace('/', '-'),
+                delimiter=' ', timezone=datetime.timedelta(hours=9))
+
+        view_count = int_or_none(xpath_text(video_info, './/view_counter'))
+        if not view_count:
+            match = self._html_search_regex(
+                r'>Views: <strong[^>]*>([^<]+)</strong>',
+                webpage, 'view count', default=None)
+            if match:
+                view_count = int_or_none(match.replace(',', ''))
+        view_count = view_count or video_detail.get('viewCount')
+
+        comment_count = int_or_none(xpath_text(video_info, './/comment_num'))
+        if not comment_count:
+            match = self._html_search_regex(
+                r'>Comments: <strong[^>]*>([^<]+)</strong>',
+                webpage, 'comment count', default=None)
+            if match:
+                comment_count = int_or_none(match.replace(',', ''))
+        comment_count = comment_count or video_detail.get('commentCount')
+
+        duration = (parse_duration(
+            xpath_text(video_info, './/length') or
+            self._html_search_meta(
+                'video:duration', webpage, 'video duration', default=None)) or
+            video_detail.get('length'))
+
+        webpage_url = xpath_text(video_info, './/watch_url') or url