Oooka Echizen was a prime-time historical television drama that ran from March 16, 1970 to March 15, 1999 in Japan. Its 402 episodes centered around Oooka Tadasuke (1677–1752), a historical figure who was a magistrate of Edo during the time of Tokugawa Yoshimune. The show was a detective-courtroom program with the magistrate serving as chief of police, judge and jury.