my 2014 Palazzo 33.3 has a 'main' HDMI cable in the Video cabinet, which provides an HD signal across the living room to the Main tv, whether for the Receiver output, or a BlueRay player, etc.
If you want to use a Dish receiver, with HDMI output, then it will work fine.
ALL 5 tv's are HDMI capable, though...
The output of any satellite antenna will be a simple coax signal, but the RECEIVER itself processes that into either a coax SD output, or the HDMI HD output - so it's not what's 'outside' that counts, but what's inside your Video system controller and Receiver.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada - Hiawassee, GA! (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )