CREATE TABLE table_31349 ("Country" TEXT, "Alternante title" TEXT, "TV Network ( s ) " TEXT, "Series premiere" TEXT, "Series finale" TEXT)

Which TV network had its series finale on May 7, 2012?
SELECT "TV Network(s)" FROM table_31349 WHERE "Series finale" = 'May 7, 2012'
SELECT "TV Network(s)" FROM "table_31349" WHERE "Series finale" = 'May 7, 2012'