SELECT COUNT(year_of_first_appearance) FROM table_name_38 WHERE corps_name = "black knights" AND number_of_finals_appearances < 1
Apa tahun penampilan pertama Ksatria Hitam, yang memiliki kurang dari 1 penampilan final?
CREATE TABLE table_name_38 (year_of_first_appearance VARCHAR, corps_name VARCHAR, number_of_finals_appearances VARCHAR)