Patent ID: 8477243

Claim:
A digital television signal receiver, comprising: a converter to convert a received radio frequency (RF) digital broadcast signal into a baseband signal; a decoder to decode the converted baseband signal to reconstruct a digital broadcast transport stream which includes audio data, video data, and program information; an extractor to extract the audio data, the video data, and the program information from the reconstructed digital broadcast transport stream and storing the extracted program information in a storage of the digital television receiver; an audio processor to process the extracted audio data to be output as sound; a video processor to process the extracted video data to be output on a screen; a processor to access the storage to generate a channel list based on the stored program information, wherein the channel list is made up of one or more separately identifiable channel groupings, each having one or more two-part channel numbers, where each of the one or more two-part channel numbers includes a main channel number as a first part and a sub-channel number as a second part, and where each two-part channel number of a respectively identified channel grouping has a same main channel number and different sub-channel numbers; and a user interface to enable a user to navigate the channel list to search a two part channel number, wherein information included in the channel list is derived from program associated information from a Program Specific Information (PSI) table, for plural programs included in the transport stream conforming with an MPEG standard, wherein an identifiable program according to the MPEG standard is distinguished from a predetermined corresponding two-part channel number, wherein the channel list is configured to be navigable in a first direction between one or more two-part channel numbers of a first channel grouping, and navigable in a second direction between the first channel grouping and the second channel grouping, and wherein the first direction is different from the second direction.