There is a Panasonic TX-L37V10 (37" V10 series), the smallest Panasonic do in the V10 series is a 32" for all those who are not aware.
Right, i have no hands on experience with Philips products, ive never been a fan of the ambi light technology as i found this a bit of a gimmick with mood ligjting etc.. but in terms of picture quality, im not aware of how good it is. However, in regards to the Panasonic, its a cracking tv, if you want a great picture, good sound, freesat, freeview, slim model and a host of other features, this is a feature packed model for someone who wants everything in one tv, a good investment for the long term i think.
The choice is yours, i think you will need to have a look at both in a shop or something but i know the Panasonic will tempt you easily, i think its a cracking tv!