The title of this program is Robot Keiji, but it is sometimes misunderstood as Robot Keiji K (Robotto Keiji Kê, lit. "Robot Detective K") because the title and main character's name are connected in the theme song and sung as "Robotto Keiji Kei".
On April 2020, Robot Detective became one of the 70 shows to stream on the Toei Tokusatsu World Youtube channel.
Along with Android Kikaider Robot Detective was one of the early predecessors to what would become the Metal Hero Series of programs featuring human-sized cyborg heroes.
A character resembling K appears in Shin Kamen Rider and its manga spin-off There is no true peace in this world -Shin Kamen Rider SHOCKER SIDE-, voiced by Tori Matsuzaka. This version of the character is depicted as an AI working for SHOCKER.
The TV Series and the manga by Shotaro Ishimori, which was serialized in Weekly Shonen Magazine at the same time.