SELECT language FROM table_name_23 WHERE hdtv = "no" AND package_option = "sky famiglia" AND television_service = "national geographic channel"
Bahasa apa yang tidak, seperti HDTV, Sky Famiglia sebagai paket/opsi, dan saluran National Geographic sebagai layanan televisi?
CREATE TABLE table_name_23 (language VARCHAR, television_service VARCHAR, hdtv VARCHAR, package_option VARCHAR)