Monogatari Series: Off & Monster Season Episodes 1-3 Blu-Ray Changes
The Monogatari Off & Monster Season (OMS) ended back in September of 2024. However, just as its original broadcast as an ONA on ABEMA ended, its televised airing started—with a flurry of corrections and changes. However, Orokamonogatari and Nademonogatari (episodes 1-6) were left relatively untouched in the TV airing with the focus of corrections being mostly on episodes 7-14. The only significant change for Orokamonogatari (episode 1 of OMS) that a friend noticed was a change in shadows, here:

With Nademonogatari's BD release now out, there are a number of new corrections made. For all images, the format will be: TV Version (left) and BD Version (right). Also, the TV does dim the lighting, so I won't be counting any of those changes as 'corrections'.
And for those that are joining me from Twitter, this will likely be where I'll be making these kinds of episodic comparisons, and maybe some other things, from now on.
Episode 2




Top: Animation correction / Bottom: Photography correction, with changes in panel use for the background




Top: Animation correction / Bottom: Sparkles added by the photography (composite) team




Both: Animation correction




Both: Animation correction




Top: Drawing retake for two cuts. The CG/photography is also a bit different; it looks very different in movement / Bottom: Drawing correction




Top: Animation correction / Bottom: Composite correction and minor animation correction (ears). Instead of reflecting the color of Nadeko's room, Yotsugi's eyes are now just mostly her eye color




Top: Animation correction / Bottom: Text added




Both: Background and composite retake for this whole cut




Top: Drawing correction / Bottom: Background correction (it was unfinished in the WEB/TV version)




Both: Background/composite correction
Episode 3




Both: Color correction on Kanbaru's tie, this is corrected in all cuts that show it
That's pretty much it. Episode 3 already looks pretty polished as far as the drawings compared to a lot of the other episodes, so nothing else gets any kind of particular correction.
Though the TV version itself had a few credit changes, the BD version has no new credits in particular. The only difference is that Miku Ooshima, the season's screenwriter and a producer from SHAFT, is now credited in the ED with the storyboard artist (which is the usual "SHAFT' credit order) rather than in the OP alongside the 'series composition' credit (see the first comparison for episode 2).
©NisiOisin / Aniplex, Kodansha, SHAFT