If you are looking for the "1978" movie experience in HD, you are likely looking for the first theatrical film, which was announced in March 1978.
: While the full series was never made, you can find behind-the-scenes footage and test shots of the redesigned Enterprise and cast (including the new character Xon) on specialized fan sites and DVD/Blu-ray extras. Star Trek 1978 HD - Altadefinizione01
To clear up any confusion, there is no official production titled Star Trek 1978 HD . The date likely refers to the production window of the canceled TV series or the early filming of Star Trek: The Motion Picture (released in 1979). If you are looking for the "1978" movie
: In many regions, including Italy, you can find the high-definition versions on official platforms like Paramount+ or Amazon Prime Video. 🔍 How to Watch Safely The date likely refers to the production window