CREATE TABLE table_28561455_1 (no_in_series INT, directed_by VARCHAR)

What is the latest episode number that was directed by Tom Dicillo?
SELECT MAX(no_in_series) FROM table_28561455_1 WHERE directed_by = "Tom DiCillo"
SELECT MAX("no_in_series") FROM "table_28561455_1" WHERE "Tom DiCillo" = "directed_by"