query: embed.html#SELECT
    ?director ?directorLabel ?directorDescription 
    (COUNT(?item) as ?count_episodes) 
    (SAMPLE(?item) as ?sample_episode)
    (SAMPLE(?original_title) as ?sample_title)
  WHERE
  {
    ?item wdt:P31 wd:Q21191270  ; wdt:P179 wd:Q2632294 .
    ?item wdt:P57 ?director .
    OPTIONAL { ?item wdt:P1476 ?original_title }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  GROUP BY ?director ?directorLabel ?directorDescription 
  ORDER BY DESC(?count_episodes) ?directorLabel