Yeah there's been a bit of noise about that. I've only watched Zygons and did notice some of the episode 1 film sequences look a little over-processed. It's that early Blu-ray edge sharpening look, presumably to try to blend it better with the later episodes that have the original film.
It's not actively bad and overall is still an upgrade on the DVD, so I'm not too fussed. I'd like them to dial it back a notch when they get to Season 11. I do think some of the reaction has been typically overblown, with some fans claiming it's "unwatchable" and that the set is worthless. A bit of perspective needed I think.
Will keep an eye out for Android Invasion.