Sometimes, when, you want to watch a video on YouTube, it asks you to sign in to continue. Another restriction is that a warning appears saying that the video you want to watch is not available in your country. Here is how to quickly bypass these restrictions and watch the desired video instantly.
Here is an example of a restriction which prevented me from watching the gameplay of WATCH_DOGS, a multiplayer game:
To watch it, you just need to change the video URL in the address bar in your browser.
By default, the URL looks as follows:
You can replace the portion "watch?v=" with "v/" or with "embed/" to get the following URL:
That's it. Tip: to download the desired video from YouTube, refer to the article: How to download a YouTube video quickly without installing any apps