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Discussion Starter · #1 ·
Ok, I am new to the Digital HD TV world and just bought my first HD-TV a Vizio. The Vizio has both a NTSC and ATSC RF Tuner.


I have not upgraded to digital HD cable yet (coming soon) and just have regular old standard cable from Adelphia, no cable box or OTA antenna. I connected the TV via Coax to the wall and did a channel scan. It found all my regular SD channels ... and several digital channels that I didn't expect to be there since I have regular super cheap cable. The funny thing is that these digital channels are not there all the time. There numbers are something like 83-1, 83-2, 83-3, 108-1, 108-2, 108-3, ect. The numbers in the 83-x range are the major networks like ABC, CBS, Fox, NBC and sometimes PBS/Discovery HD. They are broadcast in HD 1080i or 720p and are there most of the time. The upper channels seem to be movie channels and I saw Howard Stern one time (uncensored by the way). However, these channels sometimes just go away, and the TV will just skip over them like they were never there. It seems completely random when one of these channels will just show up.


Does anyone know why this is? Should digital HD channels just be on my regular cable line? Why are they there only sometimes? Is it possible I am picking something up off my neighbors? I am upgrading my cable anyway but just thought this was strange.
 

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Some cable companies keep the broadcast networks in the clear, meaning if you have basic cable and a QAM tuner you will be able to pick them up. The channels that you see coming and going are most likely other people's on demand streams that are also broadcast in the clear.
 

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Discussion Starter · #3 ·
Thanks for the info. That does appear to be what is going on. After a little research all the channels that I am picking up consistently are ones that are apart of the cable companies Basic HD channels available through their digital cable service.


The On Demand channels makes sense because of the inconsistency of them appearing on my TV. Also I noticed once that there was a channel broadcast in HD. However, the image was very small and in the corner like a PiP in someone's preview of an on demand channel.
 

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Quote:
Originally Posted by AeroEngy /forum/post/0


Thanks for the info. That does appear to be what is going on. After a little research all the channels that I am picking up consistently are ones that are apart of the cable companies Basic HD channels available through their digital cable service.


The On Demand channels makes sense because of the inconsistency of them appearing on my TV. Also I noticed once that there was a channel broadcast in HD. However, the image was very small and in the corner like a PiP in someone's preview of an on demand channel.

Keep in mind that the cable company likes to change the channel mapping every so often. Comcast does it regularly in my area, although the channels haven't changed in about 2 months now.


As for the ON Demand stuff. It's pretty cool to watch a PPV movie for free, but it seems like as soon as I get into the movie, the guy paying the bill has to pee or something. It's very aggravating, but I can't really complain since it's free.


Also, if you have small kids around, you might want to block those channels since the porn gets through unencrypted as well.


ft
 

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You really don't know what's on and when. It's strickly a 'crap shoot'................
 
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