Duplicate channels (not SD/HD)

My Tivo Premiere suddenly has duplicate channels for many of the stations (i.e., channel 5 KTLA is listed twice in the guide with the same channel number and station name). Not all of the channels are duplicated but it includes a mix of local channels and cable channels. I can deselect the duplicate channels in Settings->Channels->Channel List and they are removed from the guide. I am on Time Warner Cable in Los Angeles. I rebooted Tivo and I also repeated guided setup. Neither action fixed the problem and I still have duplicate channels in my channel list.



juls