A reception device comprising: a reception block configured to receive transmitted audio-video, AV, content; a trigger extraction part configured to extract trigger information about the control of an application program to be executed in linkage with the AV content either by the reception device or by an external device connected to the reception device, the trigger information comprising a command, a target device type and an application ID, and being transmitted together with the AV content; a device control block configured such that if the extracted trigger information indicates a command targeted at a device type of the type of the reception device, then the device control block controls the operation of the application program identified by the application ID in accordance with the command indicated by the trigger information; and an external device processing part configured such that if the command indicated by the extracted trigger information is targeted at a device type of the type of the connected external device, then the external device processing part transfers the command indicated by the trigger information to the connected external device, wherein the application program to be executed by the connected external device is a data broadcast application identified by the application ID, and wherein the device control block is adapted to terminate the application program currently executed by the reception device, when the external device processing part determines that the operation of the application program executed by the external device has started and if the application program executed by the external device is the same as the application program currently executed by the reception device. a reception block configured to receive transmitted audio-video, AV, content; a trigger extraction part configured to extract trigger information about the control of an application program to be executed in linkage with the AV content either by the reception device or by an external device connected to the reception device, the trigger information comprising a command, a target device type and an application ID, and being transmitted together with the AV content; a device control block configured such that if the extracted trigger information indicates a command targeted at a device type of the type of the reception device, then the device control block controls the operation of the application program identified by the application ID in accordance with the command indicated by the trigger information; and an external device processing part configured such that if the command indicated by the extracted trigger information is targeted at a device type of the type of the connected external device, then the external device processing part transfers the command indicated by the trigger information to the connected external device, wherein the application program to be executed by the connected external device is a data broadcast application identified by the application ID, and wherein the device control block is adapted to terminate the application program currently executed by the reception device, when the external device processing part determines that the operation of the application program executed by the external device has started and if the application program executed by the external device is the same as the application program currently executed by the reception device.