Two TV interfaces for accessing contents at ease in an "always-recording" multi-channel situation

We propose two TV interfaces for accessing a rich variety of contents stored in large-capacity HDD at ease. The first one is designed for handling multi-stream data received by multiple TV tuners and searching multiple TV channels simultaneously. The second one is deigned for handling a time range and searching for scenes in that range. These interfaces can be implemented on commercial products such as PCs, TVs and HDD recorders.