This means that your television does not have built-in CEC (Consumer Electronics Control) support. Biscotti will not be able to turn this TV on automatically.
If you own a TV which you know supports CEC commands and still receive this message, first plug into a different HDMI input on the TV and try to change the Auto TV On setting. If Auto TV On still does not change from Unavailable try a different HDMI cable from the Biscotti HDMI OUT to your TV.
If the problem persists please contact support with the make/model of your TV.