Method to control IoT devices (e.g. smart lamps, smart air conditioner, etc.) through a smart DTV device. Main control is synchronized with the video scene of the transport stream (open/cable/satellite DTV channel) through data added by broadcaster. The broadcaster chooses the desired IoT devices that will be controlled by the channel and the effects that will be reproduced on all devices. The broadcaster can use some multiplexing tool to add the commands synchronized with the desirable video scene together with the other data present at TS flow. The broadcaster datacasts certain data to all home DTV appliances or receivers tuned to that channel. In the receiver side, this data is filtered, processed and transmitted to all IoT devices on the home network and, also paired with the TV receiver.