Linux Media Center Edition is a free open source operating system
designed to allow a computer to act as a Home Media Center and Home
Automation Center.

It allows you to record and replay all your TV & Media/Entertainment
content via easy-to-use GUI on a PC.

Watch this amazing demo video:

The "Follow Me" function will follow you through the house while you
move and automatically controls all existing media devices, like TVs,
Stereos, etc.

The Home Automation (or Smart Home) module lets you control lighting,
climate, security, camera surveillance and alarms from the same display

Of course, it can also handle VOIP (telephoning over the internet).

It is yours too. Get it from

See also:
General instructions to install the popular Ubuntu Linux on your PC

Have a nice day,

Most kindly