Leen Jongewaard was only supposed to appear in double role as Gerrit and his grandfather once, but the public swiftly demanded that 'Opa' became a regular character on the show.
The song, "M'n Opa" was released as a single with "Lodewijk, Waar Zit Je" from Lodewijk (1966) as the B-side.
Although most of the visuals have been lost, mono-audio recordings of each installment still survive. This episode has been released as a radio play, minus the songs but with new linking narration by Hetty Blok recorded in September 2000. It can be found on disc 1 of the 3 disc 'Ja Zuster, Nee Zuster Luisterboek'.