I have lurked a long time and used this board to help me make my recent TV purchase. So I figured I should post my latest experience with the Vizio 47".
I have had the 46" Vizio from Costco for several weeks. I was enticed by the new 47 and picked one up yesterday. I wanted to check it out at home before returning the 46. Bottom line, I took the 47 back today and will be sticking with my 46.
First of all, I'm no expert, I just judge the sets by what looks good to me. The picture quality on the 47 looked terrible to me. There is a sharpness setting that is defaulted to 4 (range is 0-7). At anything above 2 all straight lines looked overly enhanced and jagged. Anything 2 and below was blurry. I just couldn't get a good looking picture, regardless of the source (OTA HD, upconverting DVD via HDMI, HD TiVo via HDMI, etc). I was able to easily compare the picture to my existing 46 Vizio and to my eyes the 46 had a much better picture - clean crisp pictures, even backlighting, etc.
I also noticed that the inputs on the 47 had been trimmed down a bit. For example, the composite connections on the 46 each had their own S-Video input. On the 47, there was a single shared S-Video input between the two composites. Also, there was only 1 set of analog audio inputs shared between the two HDMI connections. On the 46, both HDMI's had its own analog audio inputs. None of these differences impacted me and my setup, but they are compromises that might impact others.
While testing the 47 I had a brief moment of garbled audio at low volume and when switching between HDMI inputs one time, the picture was messed up from the DVD player on HDMI2. A quick switch back and forth again resolved the picture problem, but I never had that problem with my 46. Also, the speaker hum was present with any backlight setting below 90.
I did like the new controls on the front of the 47 TV. They are invisible until you touch it. The bezel was also a little narrower. It looked pretty nice.
PIP functionality was very picky about what sources could be paired up when using PIP. For example, can't shop two HDMI sources at the same time. I don't think the 46 is as picky, but I also don't use it often so I could be wrong here.
I really wanted to like the 47 better as I would end up saving $250 over the price I paid for my 46, after the coupon in Jan. But, it was no comparison for me. The 47 had to go back.
I realize that I could have tried another 47 to see if it was just a bad one the first time. But, I have realized that I must have gotten lucky with my 46 because it really does look spectacular, especially compared to the 47 that I bought yesterday and returned today.