Provided are a television receiver, server, operational system of the television receiver and operational program of the television receiver capable of detecting and correcting unintended connection in case that the connection is established, and facilitating the operation of the television receiver from the outside. A television receiver 110 is operable via a network, and has a notifying section 115 that notifies a user of key information for specifying an operational request of the television receiver 110, and a receiver-side transmitting/receiving section 114 that receives connection confirmation information specific to temporary connection when an external terminal 150 and the television receiver 110 are temporarily connected based on the key information, where the notifying section 115 notifies the user of the received connection confirmation information so as to enable the external terminal 150 to operate the television receiver 110 when the connection confirmation information is confirmed between the user and an operator.