So I've had HD channels for about...8 months or so, and I absolutely love it! So much so, that I rarely watch SD (standard definition) channels, unless it's a local sports game that isn't offered in HD. But on INHD and INHD2, they play a lot of IMAX movies. Now, I know IMAX has been around for a long time, and I'm just wondering what sort of technology they used? I mean, the stuff looks fantastic in HD, almost as if it were meant for HD, and the quality was great in IMAX theaters as well. Is IMAX an older "form" of HD?