Found this during a search for Raw Video of the SOTU 2018.
I haven't yet watched it, and don't know if
it is any different than those already posted.
Also, I don't know how to embed without a share option.
https://www.azfamily.com/news/raw-video-trump-delivers-first-state-of-the-union-address/video_90fc4460-a44c-5e8d-a38f-4bcfaaeee4a6.html
https://web.archive.org/web/20190205181735/https://www.azfamily.com/news/raw-video-trump-delivers-first-state-of-the-union-address/video_90fc4460-a44c-5e8d-a38f-4bcfaaeee4a6.html