a real world point of view
PolyGram were one of the distributors of Doctor Who home videos to viewers in Australia and New Zealand, active mostly in the late 1980s and early 1990s. However they did not obtain the distribution rights for both countries simultaneously. PolyGram took over from Kerridge Odeon, the original purveyors of Doctor Who tapes in New Zealand, in 1990. PolyGram retained the cover artwork from the Odeon releases, which meant that some stories had different VHS covers in New Zealand than they did in Australia. A good example of this is Terror of the Zygons.
- Doctor Who Toybox's collection of Terror of the Zygons covers, which shows the chronological history of VHS distribution in New Zealand and Australia