[Lowfer] HDTV RFI, request recommendations for reduction of noise

[Andy - KU4XR]

Greetings all:

As you are all very aware.. The noise we deal with on MF / LF 
frequencies can be terrible, and sometimes curable, sometimes not..
PC's, switching power supplies, especially cheap Wall-Warts, and
for sure the lovely HDTV's of today.. Here is my current delimna..
My old HDTV had a low frequency refresh rate, and just ripped to
pieces many frequencies in the 600, 630, 1750, and 2200 meters bands..
After replacing 3 defunct power supplies in it, I finally retired it..
I then went thru the process of finding a new " radio friendly " HDTV
for the family room.. My wife is the TV-aholic, as for me; I would
rarely have one on.. I purchased a Zenith 42 inch LCD with a 
Refresh rate of 600 KHz.. As I expected, the interference to 
frequencies below 500 KHz was either eliminated, or greatly reduced..
However... I did not at the time, consider the regular ham bands..
Well of course 600 KHz times 3 equals 1.8 MHz ... Yaaaayyy
The TV does cause interference at lower frequencies, but it is
tolerable.. 160 meters though is another story.. 20 dB over S-9
growl, and garbble.. My noise blanker will reduce, mask, or whatever
it does to it, and drop it down to S-9, but 160 meters is un-usable
except to transmit in beacon mode... I have thru the years built
heavy filters for power supplies, and been able to eliminate lots
of noise.. But, I am not sure that this type of noise has a remedy..
The refresh rate is fixed, and cannot be changed thru the setup menu..
I have tried putting a home-brew, heavy duty line filter on the TV
with no sucess at all.. I can disconnect the coax from the TV and the
noise is still there, but does not change in frequency until I 
reconnect the cable and the picture comes back on.. The old Rat Shack 
inline caox RFI filter does nothing.. SO; I'm stuck as to how to deal
with this type of interference.. We all know that hind sight is 20/20,
and had I thought it thru better, I would have saw this issue beforehand..
Yes, turning the TV off, it does go away, and a nice S-2 meter reading
on 160 meters.. Any thoughts, ideas, recommendations, etc. will be most
appreciated.. 

73 to all:

Andy - KU4XR