CREATE TABLE table_204_958 (id NUMBER, "episode" NUMBER, "original broadcast date" CLOB, "average" NUMBER, "rank" NUMBER, "remarks" CLOB)

which was the first episode to drop the average below 0.60 ?
SELECT MIN("episode") FROM table_204_958 WHERE "average" < 0.6
SELECT MIN("episode") FROM "table_204_958" WHERE "average" < 0.6