BBC iPlayer Auto HD

gistfile1.js

function autoHD() {
  var evt = document.createEvent("MouseEvents");
  evt.initMouseEvent("click", true, true, window,
    0, 0, 0, 0, 0, false, false, false, false, 0, null);
  var cb = document.getElementsByClassName("hd")[0]; 
  var canceled = !cb.dispatchEvent(evt);
}
window.document.onload = autoHD;
autoHD();