Anyone else watch Alt Shift X videos on youtube? His theories are very in depth, but his episode recaps are really good too and his recap of this week picked up on a few things I didn't notice, small but meaningful things. Such as when the High Sparrow presented Tommen and he came out with the Kingsguard, they had a new sigil. It was a crown inside of the faith's 7 pointed star. Similar to how Stannis's sigil was the stag inside the fire, a symbol of the house being within the religion. A symbol of what is in control of the other essentially. I LOVE these types of nuggets.
Same with a previous episode of when LF presented the "caged falcon" to Sweet Robin, a sign that the Robin (a falcon is the sigil of house Arryn) is being controlled by LF (the cage).