I do agree that Panasonic's 3MOS camcorders have one of the worst, if not the worst Auto White Balance.
I love the picture quality of my Panasonic HDC-SD600, but as alainhubert and David HT guy have stated, it's Auto White Balance is way to unreliable.
I'm using my camcorder mostly on vacation's and want to capture interesting places, people, actions etc.
Last thing i want to do is fiddle with setting White Balance and missing something interesting.
If I find the time, I will post video links showing how SD600 is completely out of whack and screen goes blue, when light is changing.
One extreme exemple I recall right now, is making video inside a museum while walking slowly, when the camcorder faced a row of windows, the color shifted to blue! Then after 5-10 seconds it readjusted itself.
I would like to mention that I have "graduated" to Panasonic's HD camcorder (HDC-SD600) from a SD Panasonic's MiniDV camcorder (PV-DV203). In over 7 years of use of my MiniDV camcorder, I don't recall ever seeing anything close to what Panasonic's latest Auto White Balance is doing! That MiniDV camcorder was used in any possible situations, like videotaping from inside the car/bus, boats/ships, museums, beaches, etc and never have I seen a such drastic color shift or Auto White Balance issue.
David (HT guy), interestingly I also own a Canon PowerShot Elph 300HS P&S, as well as Panasonic HDC-SD600.
In my opinion 300 HS shoots very sharp and detailed video in it's 1080p/24 mode, tough you need to be very carefull when panning.
Also auto focus i a bit slow in a video mode.