[Object]To execute applications in link with the progression of content being viewed at user's home.[Solving Means]A terminal apparatus practiced as one embodiment of the present disclosure has an extracting block configured to extract signature data indicative of features of content to be reproduced, a query generating block configured to generate a query that at least includes the above-mentioned extracted signature, a communication block configured to transmit the above-mentioned generated query to a server apparatus and receive a response returned by this server in response to the above-mentioned response, and an application executing block configured to obtain an application on the basis of an application URL (Uniform Resource Locator) in which at least application identification information is written, this URL being included in the above-mentioned received response, and execute the obtained application. The above-mentioned terminal apparatus practiced as one embodiment of the invention is applicable to TV receivers.