You can right-click->save-as the video link in the network panel of dev tools of either Chrome or Firefox. Google's own browser lets you save youtube videos wit

You can right-click->save-as the video link in the network panel of dev tools of either Chrome or Firefox. Google's own browser lets you save youtube videos with a few clicks. Also taping TV and radio is legal as well, even though the receiving device doesn't offer that functionality, unlike Chrome.