CREATE TABLE table_77848 ("Episode" TEXT, "Air Date" TEXT, "Timeslot" TEXT, "Rating" TEXT, "Share" TEXT, "18\\u201349  ( Rating/Share ) " TEXT, "Viewers  ( m ) " FLOAT, "Rank  ( # ) " TEXT)

What is the share of the 18-49 (Rating/Share) of 0.8/3?
SELECT "Share" FROM table_77848 WHERE "18\u201349 (Rating/Share)" = '0.8/3'
SELECT "Share" FROM "table_77848" WHERE "18\u201349 (Rating/Share)" = '0.8/3'