Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_29135051_3 (guest_s_ VARCHAR, broadcast_date VARCHAR)
### Question:
how many guest stars did the episode that was broadcasted 11september2012 have
### Answer:
SELECT COUNT(guest_s_) FROM table_29135051_3 WHERE broadcast_date = "11September2012"