which tv episode has the original air date of 11/21/1948?
Entity Entity Entity Entity
m.05dgy9g m.07mc51w m.06xtd6k m.06yh88s
An Inspector Calls Joy to the World Good Bye, Miss Lizzie Borden Betty Jane Watson, The Blackburn Twins, Pat Henning
class literal
tv.tv_series_episode 1948-11-21^^http://www.w3.org/2001/XMLSchema#date
tv.tv_series_episode type.datetime
TV Episode 11/21/1948
none none
tv.tv_series_episode.air_date
Original air date
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :tv.tv_series_episode . 
VALUES ?x1 { "1948-11-21-08:00"^^<http://www.w3.org/2001/XMLSchema#date> } 
?x0 :tv.tv_series_episode.air_date ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND tv.tv_series_episode (JOIN tv.tv_series_episode.air_date 1948-11-21^^http://www.w3.org/2001/XMLSchema#date))