CREATE TABLE table_2000 ("Season" FLOAT, "Timeslot" TEXT, "Season premiere" TEXT, "Season finale" TEXT, "TV season" TEXT, "Rank" TEXT, "U.S. viewers  ( in millions ) " TEXT, "Rating  ( adults 18\\u201349 ) " TEXT)

How many million u.s. Viewers watched season 1?
SELECT "U.S. viewers (in millions)" FROM table_2000 WHERE "Season" = '1'
SELECT "U.S. viewers (in millions)" FROM "table_2000" WHERE "Season" = '1'