Abstract: According to embodiments, a client device, a companion screen device, and an operation method thereof are disclosed. The disclosed client device includes: a communication interface; a display; a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to control the display to display at least a part of 360-degree video content, identify a companion screen device having a 360-degree control capability to perform 360-degree control on the 360-degree video content, control the communication interface to connect a communication channel with the identified companion screen device, and control the display to control the displaying of the 360-degree video content according to a control command received from the connected companion screen device.

Abstract: Provided is an electronic device including: a communication unit; a tuner configured to receive a channel signal of a broadcast channel by tuning to a frequency of the broadcast channel included in the broadcasting signal; and a controller configured to acquire data regarding the broadcast channel based on the channel signal and transmit the data to a server through the communication unit, the data including at least one of signal information indicating properties of the channel signal, and service information regarding the broadcast channel.

Abstract: According to embodiments, a client device, a companion screen device, and an operation method thereof are disclosed. The disclosed client device includes: a communication interface; a display; a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to control the display to display at least a part of 360-degree video content, identify a companion screen device having a 360-degree control capability to perform 360-degree control on the 360-degree video content, control the communication interface to connect a communication channel with the identified companion screen device, and control the display to control the displaying of the 360-degree video content according to a control command received from the connected companion screen device.

Abstract: Provided is an electronic device including: a communication unit; a tuner configured to receive a channel signal of a broadcast channel by tuning to a frequency of the broadcast channel included in the broadcasting signal; and a controller configured to acquire data regarding the broadcast channel based on the channel signal and transmit the data to a server through the communication unit, the data including at least one of signal information indicating properties of the channel signal, and service information regarding the broadcast channel.