45. Apparatus for continuous pattern recognition of broadcast segments, each of said segments having at least one of an audio portion and a video portion, and having a first portion that is the same each time the segment is broadcast and a second portion that may differ each time the segment is broadcast, said apparatus comprising: means for construction a signature from a known sample of the first portion of such a segment to be recognized; means for recording additional data from known samples of said second portion; means for storing said signature and said additional data; means for associating with said stored signature an indication of the existence of said second portion; means for monitoring a broadcst signal; means for identifying the first portion of a broadcast segment in said monitored broadcast signal with said signature; and means for using said additional data to identify the second portion of said broadcast segment.
45. Apparatus for continuous pattern recognition of broadcast segments, each of said segments having at least one of an audio portion and a video portion, and having a first portion that is the same each time the segment is broadcast and a second portion that may differ each time the segment is broadcast, said apparatus comprising: means for construction a signature from a known sample of the first portion of such a segment to be recognized; means for recording additional data from known samples of said second portion; means for storing said signature and said additional data; means for associating with said stored signature an indication of the existence of said second portion; means for monitoring a broadcst signal; means for identifying the first portion of a broadcast segment in said monitored broadcast signal with said signature; and means for using said additional data to identify the second portion of said broadcast segment. 47. The apparatus of claim 45 wherein: each of said segments has at least a video poriton and said recording means comprises means for recording at least one video frame of said second portion; and said using means comprises means for performing a direct comparison of said at least one video frame and at least one video frame of said monitored broadcast signal.