Outlander first show problems with playback?

I bought the first season of Outlander today on iTunes. I'm a longtime customer who has purchased entertainment from the store from the beginning.

But the first episode as I watch is full of artifacts and continually stops and falls out of synch.

I rebuilt the the drive that contains my iTunes library and even deleted and redownloaded it, but I'm getting the same errors in the same places. Anyone else having the same issue? Is the Apple video file corrupt? Will they replace it?

Thanks!