By midnight Friday, there will be no full-power analog signals left in the U.S. (with the exception of a few dozen stations that will "nightlight" with DTV info for a few weeks). The only analog signals left will be most translators and LPTVs (a small few have or will soon be converting), plus border-crossing signals from Canada and Mexico (Canada is set to switch off analog in 2012, I believe; Mexico way up the road -- I think their goal is 2020 or 2030 or some such?). BTW, I've read of some TV-DXers who, while annoyed by the difficulties of DTV DXing and nostalgic about losing analog, are yet salivating at the prospect of all those open lo-band channels where they might now get Canadian, Mexican, Cuban, etc. skip signals that used to be blocked... 
I'm not posting this to incite any debate or argue over the pros and cons of DTV, nor the money and politics involved. (I have done so at length in the past; any arguments or dissensions I might have are moot now, anyway.) I'm just reflecting on how incredible it is to think that analog TV remained, at its core, unchanged for over 60 years. (Of course, AM radio fans will point out that that technology has been more or less unchanged for even longer. But I digress, as this is a TV board...)
Once we had the current VHF channels set, settled on a 525-line standard, and established the basic technical parameters, all further developments, improvements, and add-ons (UHF, color, stereo sound, etc.) were backwards-compatible. You could restore a late 40's TV set and it would still display current VHF analog signals fine, or you could time-travel back to circa 1948 with a current set and still be able to watch Uncle Miltie and Bishop Sheen. That's pretty amazing when you think about it. And until recent years, cable and satellite TV (both DBS and TVRO) also depended on the analog NTSC standard.
So, what are your thoughts as June 12 approaches?
I'm not posting this to incite any debate or argue over the pros and cons of DTV, nor the money and politics involved. (I have done so at length in the past; any arguments or dissensions I might have are moot now, anyway.) I'm just reflecting on how incredible it is to think that analog TV remained, at its core, unchanged for over 60 years. (Of course, AM radio fans will point out that that technology has been more or less unchanged for even longer. But I digress, as this is a TV board...)
So, what are your thoughts as June 12 approaches?