SELECT series__number FROM table_17467147_1 WHERE directed_by = "Patrick Norris" AND written_by = "Debra J. Fisher & Erica Messer"
Saat Debra J.Fisher & Erica Messer adalah penulis dan sutradara adalah Patrick Norris berapa nomor seri?
CREATE TABLE table_17467147_1 (series__number VARCHAR, directed_by VARCHAR, written_by VARCHAR)