Thank you 3dit0r

The TV is a Panasonic TX-P55ST50B or 55" Plasma, which I purchased in 2015 after surrendering a 42" Pioneer Plasma due to lack of 1080P.

I think it was pretty much one of the last Plasma's available.

DSP8000SEU, DSP5200HC, DSP33, DSW1500, 808v5, 861v4, WiiM Pro+, Panasonic 55" Plasma, DMP-BDT700 Blu-ray,
MECOOL MEon1, Russ Andrews Signature Power Block, UltraFuses, SuperFuses, Kimber Signature PS Interfaces.
Prior: DSP7000.2, DSP6000.2, DSP5000.2, DSP5000.2HC, 508.24, 568.2, 596, G98DH & G68D.
Jaguar F-Type; Meridian 770W Surround System