Setting the call-to-action Inline Video will allow you to add a video window on the homepage.
To do that:
1. Open the HOMEPAGE tab in your sidebar
2. Open the TEMPLATES tab
3. Click on Customize
4. Click on the Call-to-Action section to get a drop-down list
5. Select Inline Video
A video window will appear directly on the homepage
6. Click on Settings next to the Inline Video field in order to change the button's position and alignment.
7. To upload a video file, click on HOMEPAGE >> INLINE VIDEO tab
Please note that this option is available for premium websites only.