HX929 vs VT50 for my specific requirements?

Thanks for all the wealth of information that I have been able to gather from this forum. I wanted to see if I could get recommendations and thoughts on the best HDTV for my specific requirements.

- The TV will be placed in a 2 level family room with light from all three sides and from 2 stories high, so reflections and visibility in bright light is a strong consideration
- I will be watching both HD and SD channels equally along with DVD content
- Price is not so much of a consideration
- After initial calibration, I would prefer to leave the TV on just one setting for all SD/HD and daytime/nighttime viewing

From all my reading, I gather that the Sony XBR HX929 and the Panasonic VT50 are good options. I would appreciate any advice on which should be my preferred model. Also, are there any other models that would suit my requirements better (except the Sharp Elite - I don't want to stretch my budget that far)?

Thanks in advance.

Thanks for your response. I probably need to educate myself more on calibration. But does this mean that I will have to change a picture setting every time I alternate between daytime and nighttime viewing and/or between input sources. If so, that would be an issue since knowing myself, I will consistently miss doing that.

Is there not a TV option where one setting can be set for near optimal viewing in all situations? I read that the Sony has a light sensor that automatically changes the brightness based on the lighting.

Thanks for your response. I probably need to educate myself more on calibration. But does this mean that I will have to change a picture setting every time I alternate between daytime and nighttime viewing and/or between input sources. If so, that would be an issue since knowing myself, I will consistently miss doing that.

Is there not a TV option where one setting can be set for near optimal viewing in all situations? I read that the Sony has a light sensor that automatically changes the brightness based on the lighting.

Thanks again for your response. In which case, I will probably have to reconcile to not-the-best-possible picture quality on the TV. Knowing myself and my family, I know that this TV in the family room will be used in difference light settings without anyone remembering or making it a point to change a TV picture setting (even if it can me made to be as simple a changing just one setting). The TV will be used 99% in either daylight or under the lights and very rarely in a dark environment.

Under these circumstances, which TV among these two (or any other TV) provides the best possibility for an optimal picture quality under one setting (per input source) in all lighted viewing conditions?