I was able to download the wowow version (thanks stretch009!) and sample several scenes. It looks very accurate to me. I have seen the movie many, many times over the years on 35mm, 16mm and Super 8mm and that is pretty close to what it should look like. It's warmer than the Lowry DVD and HD version, but not garishly orange like the blu ray. The gamma is correct, I didn't notice any crushed blacks or blown out bright areas like on the blu. It's a bit over sharpened, but still very nice for an HD broadcast. The soundtrack is neither the DVD nor the Blu ray version, I think it is original but can't say for sure. The surrounds seem a bit loud. I have audio tapes I personally recorded as a kid during Raiders' first run, one of the mono mix and one of the dolby stereo mix. I could dig those out and compare sections. I just bought a Super 8 selected scenes version off of eBay and I should have it this weekend. I'm curious to see how that compares. One of these days I will have a 16mm print.
Does anyone know the source of this broadcast? It seems odd that this version was done and then another scan was done and re-timed for the blu ray. Maybe the same scan was used for both?