CREATE TABLE table_18821196_1 (tv_network_s_ VARCHAR, weekly_schedule VARCHAR)

What is every TV network with a weekly schedule of Monday to Thursday @ 11:00 pm?
SELECT tv_network_s_ FROM table_18821196_1 WHERE weekly_schedule = "Monday to Thursday @ 11:00 pm"
SELECT "tv_network_s_" FROM "table_18821196_1" WHERE "Monday to Thursday @ 11:00 pm" = "weekly_schedule"