CREATE TABLE table_31350 ("Country" CLOB, "Alternante title" CLOB, "TV Network ( s ) " CLOB, "Series premiere" CLOB, "Series finale" CLOB)

What was the date of the series premiere whose TV network was TV3?
SELECT "Series premiere" FROM table_31350 WHERE "TV Network(s)" = 'TV3'
SELECT "Series premiere" FROM "table_31350" WHERE "TV Network(s)" = 'TV3'