CREATE TABLE table_21818 ("Season" TEXT, "Timeslot" TEXT, "Premiere" TEXT, "Finale" TEXT, "TV season" TEXT, "Ranking" TEXT, "Viewers  ( in millions ) " TEXT)

What are all values for viewers for 1st season?
SELECT "Viewers (in millions)" FROM table_21818 WHERE "Season" = '1st'
SELECT "Viewers (in millions)" FROM "table_21818" WHERE "Season" = '1st'