Your comments
Done this but it says -
Unfortunately, your browser does not support Savefrom.net Helper.
You can simply install Ummy Video Downloader instead, and it will help you to save any YouTube video to your computer.
Done this but am I correct in saying that it isn't free to download with Yummy?
Trying that - Unfortunately, it sys my browser does not support Savefrom.net Helper. But here are several links that go straight to playback when selecting MP4 360 -
https://www.youtube.com/watch?v=SbyAZQ45uww
https://www.youtube.com/watch?v=OuUpOerfT2I
Done what you said but there is no option to "Save As"
Customer support service by UserEcho
Sorry to say it still hasn't been resolved. I can still download in MP4 720 but not in 360, which continues to go straight to playback. Can we not always have 720 as an option? The advice you gave me suggests that I would now have to pay for downloads in any format. Is that correct?