These days, you can buy a big-ass flat panel HDTV for under a grand, but if you still need an excuse to drop the money, I give you Discovery Channel's "Planet Earth" series, airing Sundays at 8 p.m. It's been compared to Jacques Perrin's "Winged Migration," which is apt in terms of their cinematography, but the comparision doesn't do justice to "Planet Earth's" grandiosity and sheer visual awesomeness. I watched the first episode last night, and while it's not perfect (the narration is pedestrian; the film sacrifices depth in favor of breadth--we're talking the entire planet Earth, after all; and the directors are a little too quick to toot their own horns), I was transfixed for two straight hours (the infrequent commercials also helped). It would take me thousands upon thousands of words to try and describe some of the scenes, but just about every shot was amazing, and I was left with a sense of wonder, marvelling at the fact that I actually inhabit the same world depicted on television. Anyway, I can't imagine watching "Planet Earth" without high-def, but it doesn't mean you should skip it if you've got regular TV.