How to download Youtube video without software?

Steps:

1.Open youtube.com:

2.Type as you needed video name for eg. Meri Bassai of this week:

3. After loaded video enter" SS" (double SS) just before youtube.com
4. Now Press Enter
5. Wait for a moment.
6. Now you will see video for download with different format in right side.
7. Finally select and double click as you needed format from the option such as MP4, 3GP, FLV etc.
8. Now started your desired video from the site.
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For more detail see below in figure:

Thank you!