query: SELECT ?item (COUNT(DISTINCT(?film)) AS ?ct) (SAMPLE(?film) as ?episodesample) (SAMPLE(?series) as ?seriessample) 
  WHERE
  {    
   VALUES ?filmtype {wd:Q21191270 } .  ?film wdt:P31 ?filmtype .  ?film wdt:P58 ?item . ?film wdt:P179 ?series . 
  } 
  GROUP BY ?item 
  ORDER BY DESC(?ct) 
  LIMIT 75