CREATE TABLE table_3266 ("Episode Number" TEXT, "Episode" TEXT, "Original Airdate" TEXT, "Rating" TEXT, "Share" TEXT, "Rating/Share  ( 18\\u201349 ) " TEXT, "Viewers  ( millions ) " TEXT, "Weekly Rank" FLOAT)

What number episode was Week 4, Part 1?
SELECT "Episode Number" FROM table_3266 WHERE "Episode" = 'Week 4, Part 1'
SELECT "Episode Number" FROM "table_3266" WHERE "Episode" = 'Week 4, Part 1'