title: How can I force youtube to use the max res thumbnail image
body: <p>I would like to set up my youtube video to only use the max res thumbnail image for any device including mobile. It seems to choose the best image for a particular device. I want to override this ability and force the thumbnail to be max res all the time. How can I do this? Is there a setting in YouTube channel settings? Is there a query string I can use in my iframe? Am I asking for something that is possible?</p>