Hello,
FYI
I've owned a Panasonic TC-32LX70 for several years. I recently hooked up a Panasonic TC-P50S30 and I had to use a Nexxtech one-way broadband signal amplfier to match the signal strength of the TC-32LX70.
[Link: thesource.ca]Of note, this amplifier actually reduces the signal strength on the older HDTV.
Cheers!