CREATE TABLE table_25357 ("Order" FLOAT, "Episode" TEXT, "Airdate" TEXT, "Rating" TEXT, "Share" FLOAT, "Rating/Share  ( 18\\u201349 ) " TEXT, "Viewers  ( millions ) " TEXT, "Rank  ( night ) " FLOAT)

Name the viewers for 2.1 rating
SELECT "Viewers (millions)" FROM table_25357 WHERE "Rating" = '2.1'
SELECT "Viewers (millions)" FROM "table_25357" WHERE "Rating" = '2.1'