4k releases - SERP Analysis

https://www.blu-ray.com/movies/releasedates.php?4k=1

https://ultrahd.highdefdigest.com/releasedates.html

https://www.arrowvideo.com/new-in/4k-ultra-hd.list

https://thedigitalbits.com/columns/the-4k-uhd-release-list

https://www.ign.com/articles/upcoming-4k-uhd-and-blu-ray-release-dates

https://www.amazon.com/New-Future-Releases-4K-Ultra-HD/s?rh=n%3A2921748011%2Cp_n_format_browse-bin%3A9397930011

https://highdefdiscnews.com/upcoming-4k-uhd-blu-ray-releases/

https://www.gruv.com/category/4k_ultra_hd_bluray_movies_new_release?srsltid=AfmBOooMuIkFzG7vK_el6QB1AaD-p_O5XpM3Hp9r1exTjsOYvx7YAbli

https://www.amazon.com/s?k=new%2B4k%2Bmovies%2Bultra%2Bhd%2Bblu%2Bray%2Breleases

https://www.reddit.com/r/4kbluray/comments/1lmons9/is_anyone_else_upgrading_4k_releases_with_newer/