I know Tv-out on a PVR 350 isn't a knoppmyth problem. But I am having an odd issue. I followed the wiki how-to guide for tv out on the 350. I had no problems whatso ever with any of the tests. The tv-out looks rather nice. My problem seems a little backwards from most of the pvr 350 posts.
I installed the 4.5 release of knoppmyth. I have 2 "working" XF86Config-4 files that i move in and out of the X11 folder for testing. The first one uses my geforce 2 and 15" monitor that was created by Knoppmyth installation. Everything works perfectly-- I can watch live tv, movies. The second is my modified file for NTSC Tv Monitor and pvr 350 card per the wiki instructions. X server and myth load fine through the tv-out of the 350, but I cannot watch live tv. I have tried many different options
(enable pvr350 mpeg2). The card captures fine, and I can even see the captured videos in the icon (mini-preview?) for Recorded media, but a blank screen comes up when I watch live tv.
The PVR is set to /dev/video16. When I change that to /dev/video1, I do get live tv, but only about every other frame. Where should I begin troubleshooting this.
The /dev/video16 should be correct as I have tested this with :

dd if=/dev/video of=/dev/video16 bs=64k
ivtvfbctl /dev/fb1 -globalalpha -nolocalalpha

Update

Needed to move pvr 350 to another pci slot

BTW - Which MSI Motherboard is this, and how is it working out?