Method and apparatus for selectively blocking audio and video signals

摘要: A method and apparatus block the reception of television programming which meets specified criteria. Data packets describing are broadcast with signal. The data include at least contain category information specifying a level in one or more multi-level categories and/or label labels applied to program content an incoming video signal detected by blocking compared preferences stored non-volatile memory apparatus. If contents match exceed then is blocked. field configurable. Configuration rating scheme transmitted methods invention extremely flexible allow several different systems be used simultaneously.