if there is one thing i know alot about on here it is digital compression, 12mbps is good for 480i at 30fps using mpeg-2 let alone 1080i at 60fps, terribly blocky and many fine details are compressed out. 6mbps on h264 is OK, h.264 is based on similar principles as divx, which has a transparency ratio that 1/10 of mpeg-2, ive seen DVD quality movies encoded at 700kbps using mpeg-4 type codecs (h.264, divx etc) compared to 7 mbps using mpeg-2. i would say 6mbps is decent for HD. when it comes to getting dish network if your worried about picture quality i would say dont do it, i was watching a large HD display on HD channels today at radioshack hooked up to a dish receiver and it was very blocky and compressed looking, comcast has very good compression ratios if you can stand their dumb-*** customer service reps, im watching an HD broadcast right now and i cannot notice any compression artifacts at all.