Question: What tv personality who has been appearing on tv since 19 September 2011 is Cher's son?
Answer(s):
answer: Chaz Bono

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01vtj38)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01vtj38 ns:people.person.children ?x .
?x ns:people.person.gender ns:m.05zppz .
?x ns:tv.tv_personality.tv_regular_appearances ?c .
?c ns:tv.tv_regular_personal_appearance.from "2011-09-19"^^xsd:dateTime . 
}