You're welcome...
It's frustrating to try and show you the mistake you are making...If I try to show you the code the computer will just post the video again...
Part of the problem is that the code you are posting has other things in it...The easiest way is to go to youtube and search for the title of the video with the search engine.
Copy the address...go to getbig, and go to the posting screen...click on the youtube button...the words "youtube" and "/youtube" appear in square brackets (if I try to show you, this post will screwup)...paste the code you copyed from youtube in between those words in square brackets...Delete the "S" from "HTTPS"...that should make it work...