1. A reception apparatus comprising: a reception portion configured to receive audio video content; a trigger extraction portion configured to extract trigger information for operating an application program transmitted along with said audio video content and executed in interlocked relation to said audio video content; a table acquisition portion configured to acquire a correspondence table for associating said trigger information with commands for controlling the operation of said application program; a command determination portion configured such that, based on the acquired correspondence table, said command determination portion determines said commands associated with the extracted trigger information; and a control portion configured to control the operation of said application program in response to the determined commands.