Thanks for getting back to me on this Randy,
Yes, I meant the service menu. I have no plan to change anything; just wanted to see it. (which I have now succeeded in doing.).
For now, I'll just watch the TV, full screen as suggested by the many, using settings that I'm finding on this site.
My only frustration with this TV thus far would be that I have to use one setting while watching movies and a different setting for daytime viewing (like sports or a weekend movie). Everyone seems to suggest disabling c.a.t.s which suggests that it's a useless feature; so why have it? In a perfect world the TV would automatically adjust to my setting based on Day or Night or perhaps the c.a.t.s. feature would have some adjustability.
It's funny, going from my 27" Sony to this TV, the larger screen on this Panasonic is great, awesome, beautiful, etc, but It also increases my desire to tweak! I'm spoiled now.