hulu-record-mode.user.js

// ==UserScript==
// @name     Hulu Record Mode
// @version  1.0.1
// @grant    none
// @match        https://www.hulu.com/*
// ==/UserScript==

function addCss(rule) {
  let css = document.createElement('style');
  css.type = 'text/css';
  if (css.styleSheet) css.styleSheet.cssText = rule; // Support for IE
  else css.appendChild(document.createTextNode(rule)); // Support for the rest
  document.getElementsByTagName("head")[0].appendChild(css);
}

let rule = '.metadata-area, .player-mask.player-mask__scrim, .rating-bug, .network-bug, .play-pause-ad, .controls-bar-container--fadeIn, .controls-bar-container, .widgets-container { visibility: hidden !important; } .controls-bar-container--fadeIn, .controls-bar-container{ display: none !important; }'

// Load the rules and execute after the DOM loads
addCss(rule)
window.onload = function() {addCss('.netadata-area, .player-mask.player-mask__scrim, .rating-bug, .network-bug, .play-pause-ad, .control-bar-container, .widget-container { visibility: hidden !important; }')};