CREATE TABLE table_16559 ("#" FLOAT, "Episode" CLOB, "Air Date" CLOB, "Time slot  ( EST ) " CLOB, "Rating" CLOB, "Share" FLOAT, "18-49  ( Rating/Share ) " CLOB, "Viewers  ( m ) " CLOB, "Rank  ( Overall ) " CLOB)

What time slots have a 6.3 rating
SELECT "Time slot (EST)" FROM table_16559 WHERE "Rating" = '6.3'
SELECT "Time slot (EST)" FROM "table_16559" WHERE "Rating" = '6.3'