CREATE TABLE table_name_23 (language VARCHAR(255), television_service VARCHAR(255), hdtv VARCHAR(255), package_option VARCHAR(255))
What language has NO, as the HDTV, sky famiglia as the package/option, and national geographic channel as the television service?
    
SQL: SELECT language FROM table_name_23 WHERE hdtv = "no" AND package_option = "sky famiglia" AND television_service = "national geographic channel"