Also you have to often get a link that does not have the BS in it. You tube will have different links for the same video based upon whether it is a featured video or a link on another page.
If it is a you tube video on another page click on the You Tube video on the bottom of the video so that the video opens on a separate page on you tubes website, (look at the URL in the address, it should be long & have extra embed codes in it). Then highlight the video title & then enter it into the search slot at the top of the page & hit return. This will open a search page & the title should be at the top of the list. NOW click on that link & it will open the video again but this time with a simplified link (url).