US BDs more prone to bandings on PAL TVs?

[Bluyoda]

Hey everyone,

I am wondering if playing US BDs on PAL HDTVs could have a negative effects in terms of bandings?

I have rented a bunch of BDs in Europe, including King Kong (2005) and Captain America, and both times it seemed that they featured far less bandings than the US BDs I imported later on.
Also, I have severe bandings in movies, where almost everyone else says it's perfect:
Skyfall:

[Show spoiler]When the cottage is on fire near the end there is terrible banding.

Marvel's The Avengers:

[Show spoiler](After the Iron Man/Thor fight, when they cut to the carrier flying through the clouds

The Hobbit: Desolation of Smaug....: (Pretty much at the beginning when during a close up Bilbo with a sky at sunset in the background)

However, I don't always have bandings show up, despite my collection consisting almost entirely of US BDs.
I just find it strange that other don't seem to see anything wrong.

So, my question is: Is it theoretically and practically conceivable that US BDs (NTSC, not really, right?) can have issues (bandings) when played back on PAL HDTVs, or is that nonsensical in every way?

I have a Pioneer Kuro LX-5080 and an Oppo-BDP 83SE connected via HDMI.

Does anyone else have these issues, or knows what's the reason?

Thanks in advance.