Knoppmyth
I am back at it. I decided to install my PVR-150 tuner into my frontend and install Knoppmyth to make things easy on myself. Knoppmyth came out with a update (R5E50) recently which adds mythtv 0.20 with all the plugins I could ever want. Sure I had mythtv 0.20 installed under Ubuntu but I didn’t have all the plugins and skins that Knoppmyth has.
After install I went through the basic setup, added the card, scanned for channels, and watched some tv. I scheduled a recording and waited for it to finish.
The only things I have changed so far was I added my user name to /etc/group so my user can use the su command and I added the following lines to /etc/X11/xorg.conf so that the resolution was 720p (instead of 800×600) on my tv. I added the following modeline to the monitor section of the xorg.conf file.
# 1280x720 @ 60.00 Hz (GTF) hsync: 44.76 kHz; pclk: 74.48 MHz Modeline "1280x720_60.00" 74.48 1280 1336 1472 1664 720 721 724 746 -HSync +Vsync
Then I added “1280x720_60.00″ to the screen section.
That is all I have done so far and I can watch, record, and schedule recordings as much as I want. Now I just wish I didn’t install on a 20 gig hard drive. I am going to run out of space fast.

I’m glad to hear that the KnoppMyth install went so well for you. On machines where the hardware is all supported, the install process is very quick.
Having gone the Ubuntu route as well as KnoppMyth and MythDora, I can’t see why anyone would want to go the build it yourself route for a dedicated MythTV box.
Here’s a screencast of the KnoppMyth install process if anyone else wonders what the install entails:
http://www.mythpvr.com/mythtv/distribution/knoppmyth/install.html
-Pete