YouTube videos not working with earlier versions of Internet Explorer

In our courses, we often have the need to link to YouTube videos. In our organization we have thousands of computers, on different operating systems and with different versions of software. There are still many learners running older versions of Internet Explorer, and so when they click on a youtube video link, it will not work or open. Does anyone know of any work arounds, or if you've experienced this - do you have any advice on how you've handled it?

Thanks in advance!