Sprite flickering above text boxes: Common on original FC?

[fuckdavidcage]

I was trying out Radia Senki, Sugoro Quest and Lagrange Point, deciding which to play and noticed they had an annoying tendency to flicker sprites right over the text boxes.  I know that kind of sprite flickering is common on Famicom games, but it happens consistently and in an annoying place.  Was this common in the original hardware, and are there any ways to remove it?