made a quick blog post
http://fxrant.blogspot.com/2025/12/the-mad-men-in-4k-on-hbo-max-debacle.html
Put together a new comparison... from the very first scene of s01e01.
updated blog post: http://fxrant.blogspot.com/2025/12/the-mad-men-in-4k-on-hbo-max-debacle.html
I found another one. Modern Los Angeles hotel lobby signs removed... but are visible in the HBO Max version.
http://fxrant.blogspot.com/2025/12/the-mad-men-in-4k-on-hbo-max-debacle.html
update: it doesn't look like EVERY visual effects shot was missed. HBO Max includes a VFX shot in s01e04, which means that it's a sporadic issue, either on a per-shot or per-episode basis.
http://fxrant.blogspot.com/2025/12/the-mad-men-in-4k-on-hbo-max-debacle.html
update 12/4/25, 1:00pm PT: Looks like the puke has been cleaned up. This is how s01e07 looks right now on HBO Max.
Other examples in the blog post are still wrong on the service, but it's just a matter of time, it seems, before they're fixed.
http://fxrant.blogspot.com/2025/12/the-mad-men-in-4k-on-hbo-max-debacle.html