"Hit Parade Special" - overseas
A couple of overseas editions have been identified. There are likely several more, particularly from Australia where a more lengthy run was likely issued.
Argentina
Australia
It seems likely that Australia issued a whole run from this series. Pictured below are two of them - volume 2 and volume 5. In both cases the label is Astor, who had also hosted the other Rediffusion-sourced UK series in Australia, "Sounds Like Hits". Other than the company logo, they appear to be no different from the corresponding UK albums. We also know that Volume 6 was released, although we do not have a cover photo. We hope to add more to the Australian discography in due course.