Investigation Held by ZnaToKi (1971)
Season 1
9.0
1971 • 23 Episodes
Season 1 of Investigation Held by ZnaToKi premiered on February 14, 1971
Season 2
9.0
2002 • 4 Episodes
Season 2 of Investigation Held by ZnaToKi premiered on January 26, 2002
Season 3
8.0
2003 • 6 Episodes
Season 3 of Investigation Held by ZnaToKi premiered on January 1, 2003