CREATE TABLE table_name_20 (grand_final_television_commentator VARCHAR(255), spokesperson VARCHAR(255), year_s_ VARCHAR(255), grand_final_dual_television_commentator VARCHAR(255))
What is the grand final television commentator status after 1959 when Dave was the grand final dual television commentator and Marie Myriam was the spokesperson?
    
SQL: SELECT grand_final_television_commentator FROM table_name_20 WHERE year_s_ > 1959 AND grand_final_dual_television_commentator = "dave" AND spokesperson = "marie myriam"