CREATE TABLE table_67879 ("7:00" TEXT, "7:30" TEXT, "8:00" TEXT, "8:30" TEXT, "9:00" TEXT, "9:30" TEXT, "10:00" TEXT)

What is on tv at 7:00 on the same channel that has Survivor: China on at 8:00?
SELECT "7:00" FROM table_67879 WHERE "8:00" = 'survivor: china'
SELECT "7:00" FROM "table_67879" WHERE "8:00" = 'survivor: china'