[mythtv-users] External Channel Change Script for DVB cards

Colin Albert colintrebla at gmail.com
Sun Oct 30 12:11:12 UTC 2011

On 10/29/2011 11:29 AM, Devin Heitmueller wrote:
> On Sat, Oct 29, 2011 at 10:39 AM, Colin Albert <colintrebla at gmail.com> wrote:
>> I am reviving and old thread.  It relates to an issue that is a problem for
>> me and will be an ever increasing problem as Cable companies continue to
>> adopt SDV.
>> The problem: I have a QAM card and want to build a MythTV box instead of
>> using the cable company's (busted/worthless) DVR. The cable company uses
>> SDV, so QAM is limited to OTA locals.
>> My solution: get a set top box from the cable company, hook it to my
>> MythTV.  Use a External channel change script to change channels so that the
>> box is requesting the channel that I want. Then change the channel on the
>> QAM card to that channel.
> This won't work.  The RF output on the set top box is NTSC (analog
> only).  You won't be able to tune to it with a QAM tuner.  You would
> have to use an analog tuner set to channel 3.
> Devin
But if I spit the input to the cable box then let the cable box and the
QAM card tune the same channel.  I am only using the cable box to
request the cable co to send that channel to my house.  Once it is being
broadcast I can receive it normally on the QAM card.

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