Originally posted by Vuce
Sorry for the confusion - I have a DirectV Tivo HD box. The header on the channel ID says 22-1 WWLPDT, then the next one says 22-1 WWLPHD (that one was never there before last week), next channel in the listing is 22-2 then 22-3. That shows up on the header but when you want to watch the channel it says searching for satellite signal. The box uses an over the air antenna to get the local HD stations. WTIC 61, WFSB 3 & WVIT 30 all come in strong but WWLP is blank - that is, no reception.
I think this relates to the problem with the VCT packets in the transmission. The information that contains the familiar channel number along with the short names was missing. Reset of equipment earlier this week seemed to fix the problem.
One of the issues I think we all see is that every vendor (and for that matter, maybe every generation) of ATSC tuners does something a little different in their software. Without the VCT info WWLP-DT should have looked like 11-2 and 11-3 ... that may be where the 22-2 and 22-3 came from on your box? I just fired up the computer with the HiPix card and scanned the airways ... attached is a picture of the channel scan and the technical info regarding the channels.
The first column is the friendly channel numbers: 22.1 and 22.2
The second column is the RF channel number
The third column is the PID's of the video and audio ... 0x means "hex" (base 16 match)
The fourth column is always "4" and I don't know what that is!
The last column contains the short identifier for the station ... its just text transmitted in the stream
If you can somehow rescan or delete and add WWLP-DT ... it may clear out the old information and get what is currently being transmitted in your ATSC tuner.