[mythtv-users] Guide selects worst tuner, remote selects best tuner---please help

[George Mari]

Steve Peters - Priority Electronics wrote:
> Hello. This is the strangest issue I've had to confront with 
> my mythbox over the past year/year and a half of using myth.
> 
> I recently got an ATI HDTV Wonder card. It took over /dev/video1 and moved
> my second pvr-500 tuner to /dev/video2, and that gave myth all kinds of
> problems, so I removed all the tuners from the myth setup and just re-added
> them like it was a new install.
> 
> Each tuner (I have 3 now) has a different priority attached to it:
> Analog pvr-500 cable input: 0
> S-video pvr-500 cable box input: 2
> HDTV tuner: 4
> 
> Also, I set them up in that same order so that the HDTV would be the main
> tuner when you go to live tv. That is the case.
> 
> When I change from an hdtv channel to a non hdtv channel, myth switches over
> to the s-video input on the pvr-500 just fine. But, when I am watching hdtv
> and go to the guide and change the channel there, it changes it to the
> analog cable input...which of course has the worst picture which is why it
> should be last on my list.
> 
> Why is myth doing this? Why can't the guide change over to the same tuner as
> the remote does when you just enter in the channel number and press ok?
> 
> -Any ideas?
> -Thanks
> -Steve

This is just a guess - do you have this setting turned on?

Setup->TV Settings->General : Avoid conflicts between live TV and 
scheduled shows

The description says, "If enabled, live TV will choose a tuner card that 
is less likely to have scheduled recordings rather than the best card 
available."

This sounds like it would explain your situation, it that is indeed enabled.