CREATE TABLE table_41167 ("Episode Number" FLOAT, "Air Date" TEXT, "Guest Host" TEXT, "Musical Guest  ( Song performed ) " TEXT, "Who knows the most about the guest host? panelists" TEXT)

What is the highest episode number in which Jamie Oliver guest-hosted?
SELECT MAX("Episode Number") FROM table_41167 WHERE "Guest Host" = 'jamie oliver'
SELECT MAX("Episode Number") FROM "table_41167" WHERE "Guest Host" = 'jamie oliver'