title: YouTube maxresdefault thumbnails
body: <p>I need to use the maxresdefault version of my YouTube video thumbnails for a website, however upon developing the code to achieve this I have found that not all of my videos have these thumbnails available, despite the videos all being 1080p.</p>
  
  <p>Is there a way to automatically generate new high-res thumbnails for all of my videos?</p>