Provided is a method of receiving digital television programming content from a television service provider, receiving a first user input of a selected digital television programming content, receiving a message from a system, in response to receiving the message, causing a notification to be displayed on the television as an overlay over the displayed television programming content, receiving a first user command, determining a first control message to transmit to the system in response to receiving the first user command, transmitting the first control message. Also provided is a system including a video camera, an entry way security system, an HVAC system, a lighting system, an alarm system, or other system. User inputs may be received via a remote control to a set top box or from a computing device at a remote computer system through the internet and/or a mobile telephone network.