This will not work. The firewire ports on the 525/725 are there to give you a compressed mpeg2 digital video connection between a digital tuner or recorder (i.e. some Moto cable boxes, or a DVHS machine). The TV does not have an mpeg2 encoder so it cannot accept DV video from a camcorder.
The 825 model will have an mpeg2 encoder, it will be able to digitize and encode analog video as well as digital video from a camcorder.
The 825 model will have an mpeg2 encoder, it will be able to digitize and encode analog video as well as digital video from a camcorder.