CREATE TABLE table_2468961_8 (written_by VARCHAR(255), directed_by VARCHAR(255), original_air_date VARCHAR(255))
Name who wrote the episode directed by patrick duffy airing on november 7, 1997
    
SQL: SELECT written_by FROM table_2468961_8 WHERE directed_by = "Patrick Duffy" AND original_air_date = "November 7, 1997"