I guess I get to be the guinea pig here whether or not resetting the EEPROM clock back to 0 will work. I just checked my return policy, and since I stupidly recycled a portion of the manufacturer's box, this set is unreturnable.
The good news is I have approx. 72 hours on my TC-P54G10. I've been monitoring this thread extensively for the past week, and frankly, wish I would have seen this prior to purchase. All the usual review sites had nothing but good things to say about the Panasonic lineup, but as always, caveat emptor.
I did contact Panasonic customer support and told them about the issue and politely asked for a firmware update. I'm basically scared to even turn the thing on at this point until I get a better handle on maneuvering around the service menu.
I just want to watch television and not have to go digging through EEPROM instructions, this isn't my idea of fun.