[mythtv-users] Controlling a cable box that outputs only on a single channel.

[Kevin Kuphal]

Steve wrote:

> I have a strange predicament, or at least I haven't stumbled upon 
> anyone else with it yet. I have a Scientific Atlanta 4200HD box. I am 
> using the cable out on the back of my cable box and it goes into my 
> second tuner card (PVR-250). Here's the problem:
>  
> The cable box's cable out only broadcasts on channel 3. So when Myth 
> has a listing for lets say... channel 5, it tunes from 3 to 5. Now it 
> only picks up static, however for it to work, it needs to stay tuned 
> on 3. The cable box can be on whatever channel needs to be recorded, 
> that's why I bought an IR Blaster, but getting that to work is a 
> problem for later. I hope most, or at least all of this, made sense.

Set Myth to use an external channel changing script.  This will cause it 
to not tune internally to different channels and then you configure that 
script to send the appropriate commands to your cable box via LIRC or 
whatever.

Kevin