SELECT original_air_date FROM table_28859177_3 WHERE directed_by = "Graeme Clifford" AND written_by = "Lindsay Sturman"
Apa tanggal udara asli untuk episode yang diarahkan Graeme Clifford dan Lindsay Sturman tulis?
CREATE TABLE table_28859177_3 (original_air_date VARCHAR, directed_by VARCHAR, written_by VARCHAR)