Oh god, no. Netflix has started doing this with their AppleTV app. I scroll to a show and am about to read the text about it and suddenly it starts playing video next to it. I now have to scroll fast enough that the previews don't start, and when I need to stop on something, I have to click on it to go into the show, then quickly click on "episodes" so it takes me to the static list of episodes that don't auto-play. I basically avoid using the app unless I know exactly what I'm looking for already. It's useless for browsing now.