[mythtv-users] QAM channels through my TV (but not my tuner)

Carl Fongheiser carlfongheiser at gmail.com
Wed Nov 29 14:22:45 UTC 2006


On 11/29/06, Jesse Dhillon <tobor at berkeley.edu> wrote:
>
>
> I have a Toshiba 62hm15a, a television which has some kind of cable
> tuner built-in, besides the CableCard business. I can take my cable
> directly from the wall and plug it into the TV, and receive all my basic
> cable channels (up to channel 80 or so, the only ones I care about).
> I've read up about how Comcast (my provider) usually encrypts channels
> or makes them otherwise unavailable without going through an STB.


These channels are not QAM at all, but plain old analog NTSC.  It sounds
like they're not even encrypted.

Rather than asking questions about how to make this work with my tuners
> (two Air2PC HD-5000's) what I'd first like to know is if anyone knows
> why my TV is capable of decoding them just fine? Is there some secret
> agreement between Comcast and Toshiba that lets it do this, provided the
> TV does not produce an output signal (i.e. the TV is DTCP compliant). Or
> is it that (hopefully) those channels are broadcast clearly, and any QAM
> tuner should be able to grab them. Any thoughts?


Your HD-5000's can't tune those channels because they are analog NTSC, and
those cards simply don't have that capability.

Carl Fongheiser
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