A digital television recorder to record television programs, having a recording section to record data onto a storage medium, a filter to identify from a received transport stream, data of a television program for recording, a timer to be set with a time and, at that time, to start the recording onto the storage medium, data of the television program received from the filter, and a cache to store data of the interactive services associated with the television programs and provided in the respective transport streams. The filter identifies data of interactive services associated with the television programs, the timer starts, at a predetermined interval before the time, acquisition of the data of interactive services and storing acquired data of interactive services in the cache, and the recording section records, immediately prior to starting recording the data of the television program, the content of the cache to the storage medium.