CREATE TABLE table_11870 ("Name" CLOB, "Premiere" CLOB, "Finale" CLOB, "Original teams" CLOB, "The Biggest Loser" CLOB, "At-Home Winner" CLOB)

What was the premiere date of the season won by Matt Hoover?
SELECT "Premiere" FROM table_11870 WHERE "The Biggest Loser" = 'matt hoover'
SELECT "Premiere" FROM "table_11870" WHERE "The Biggest Loser" = 'matt hoover'