In two volumes running concurrently.

You think Tyrion won't offer his administrative services to Dany after they meet in the books?

As a book reader, yes, it's been ceded.

I'm not assuming his existing notes didn't have an influence, but I am assuming the vast majority of readers who first experienced ASoIaF threw the author's words just experienced the first convergence of PoV characters through a completely different medium. The first meeting of major characters arcing back toward…

GRRM must feel a certain amount of shame for ceding the first contact of Dany and Tyrion to the show runners. That's gotta sting a bit, partially since they utterly stuck the landing.