Puedes embeber videos usando etiquetas HTML iframe:

• Sólo necesitas remplazar el ID del video:

Youtube (zpOULjyy-n8)

<div class="embed-responsive embed-responsive-16by9">
  <iframe class="embed-responsive-item"
      src="https://www.youtube.com/embed/zpOULjyy-n8?rel=0"
      allowfullscreen>
   </iframe>
</div>

Vimeo (737854276)

<div class="embed-responsive embed-responsive-16by9">
   <iframe class="embed-responsive-item"
      src="https://player.vimeo.com/video/737854276?&title=0&byline=0&portrait=0"
      allowfullscreen>
   </iframe>
</div>