When TV2 changed to South Pacific Television in 1976, a new version of the Goodnight Kiwi cartoon was animated. This time, the kiwi was far smaller, and the cat was nowhere to be seen. In this version, the kiwi dusts his television camera, then proceeds to go inside the camera, set his alarm clock, and go to sleep in it. This version was used on South Pacific Television all the way up to 1980.
In February 1980, South Pacific Television would once again revert to TV2, which meant the cartoon had to be updated once again.
For a brief while, TVNZ searched their archives for the 1976 version of the Goodnight Kiwi. A representative of TVNZ, Saffron Solley, explained to bun39 that she knew "all the relevant details and what he looks like, I just have to find the right listing in [the] collection." She also claimed that once the relevant footage was acquired, TVNZ would make sure that they would "make sure ... [he is] available for online viewing". However, in April 2017, TVNZ quietly discontinued their Footage Licensing Ideas website, deleting their copy of the 1975 Goodnight Kiwi in the process. Considering the fact that VHS and Betamax were both available in New Zealand in the late-1970s, it is possible that a recording of the 1976 version exists somewhere, but until a copy is made available, said version can only be considered partially found.
UPDATE: As of November 4th, 2019, the TVNZ company uploaded the Full 1976 Goodnight Kiwi skit on their YouTube Channel ( https://www.youtube.com/watch?v=6UTvtimVDGE )