CREATE TABLE table_7509 ("8:00" TEXT, "8:30" TEXT, "9:00" TEXT, "9:30" TEXT, "10:00" TEXT)

What is airing at 9:00 on the channel that airs House at 8:00?
SELECT "9:00" FROM table_7509 WHERE "8:00" = 'house'
SELECT "9:00" FROM "table_7509" WHERE "8:00" = 'house'