[Problem]To enhance the ease of use of a network by a DLNA-compliant device.[Solving Means]A television receiver 250 discovers another DLNA-compliant device connected to a network (S3). Then the television receiver 250 determines an IP address of eHDMI connection (S4) and, in the case of a device directly connected by HDMI, connection setting of a DLNA with that device is automatically executed (S5 through S8). The television receiver 250 may present each connection setting state to a user on a user interface screen, thereby making the user execute checking. In configuring an AV system, the user may execute direct connection by HDMI to enhance the ease of use of an AV system 200 without having to execute the connection setting of DLNA.