I’d put odds on the 16x9 blu-ray/digital cuts.
This^
Someone needs to start buying ad time on cable movie networks to advocate for OAR presentations. In an age with such affordable, massive TVs, there’s no excuse anymore. Not that there was ever a legitimate excuse for pan and scan…
An aside, are 16x9 presentations of anamorphic widescreen films even pan and scan, or do they just assume they’re protected for TV broadcast and crop them?