CREATE TABLE table_39639 ("Episode #" FLOAT, "Season #" FLOAT, "Format #" CLOB, "Title" CLOB, "Original Airdate" CLOB)

What is the average episode number with q146 format?
SELECT AVG("Episode #") FROM table_39639 WHERE "Format #" = 'q146'
SELECT AVG("Episode #") FROM "table_39639" WHERE "Format #" = 'q146'