Here is one solution:

Subscribe to something like Schedules Direct 
(http://www.schedulesdirect.org/)

Load the channels via Input Connections in mythtv  backend setup.

Setup a transmitter, like comandir II , or USB-UIRT* *(lirc),  with the 
codes for your comcast box remote

Run an external channel changing script in External Channel Change 
Command (mythtv back end setup, Input Connections)

(https://help.ubuntu.com/community/MythTV_External_Channel_Changer#Setup%20the%20channel%20Change%20Script)

I run the same type of setup on a Motorola box, but use an analog tuner 
set to channel 4. Should work fine with your setup too (without tuner).







On 04/26/2011 12:41 PM, r j wrote:
> comcast DCH3200 box

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