CREATE TABLE table_16596 ("No." FLOAT, "Episode" TEXT, "Air Date" TEXT, "Timeslot" TEXT, "Rating" TEXT, "Share" FLOAT, "18\\u201349  ( Rating/Share ) " TEXT, "Viewers  ( m ) " TEXT, "Rank  ( # ) " TEXT)

What was the share for the first episode that ranked 85?
SELECT MIN("Share") FROM table_16596 WHERE "Rank (#)" = '85'
SELECT MIN("Share") FROM "table_16596" WHERE "Rank (#)" = '85'