+ 'alt_title': clean_html(video_data.get('subtitle')), # attributes used e.g. by Tele5 ...
+ 'genre': clean_html(video_data.get('genre')),
+ 'channel': clean_html(dict_get(video_data, ('category', 'channel'))),
+ 'season_number': int_or_none(video_data.get('season')),
+ 'episode_number': int_or_none(video_data.get('episode')),
+ 'release_year': int_or_none(video_data.get('releasedate')),
+ 'age_limit': int_or_none(video_data.get('age_restriction')),