I'm still getting to know my SIR-TS160 HD receiver from D*, so pardon the [dumb] questions... I've noticed today that Discovery HD is very, uh, stuttery, especially in scenes where there's a lot of full-screen motion/panning. It almost looks like digital video that has too much data in the stream that causes a loss of framerate. I checked my satellite signal strength and I have 80%+ on every transponder on the 110 sat. Anyone seen this?