Coincidentally, we in Finland are today
exactly 200 days from the death of analog TV and start of the digital TV age. After the end of August this year, we'll be using digital TV recievers and currently some 60% of the population have gotten a digital TV reciever (in one form or another).
There is some voicing of distrust from people who can't see what the benefit of digital TV is. Some are wanting the time of the switch to be moved (a bit late in my and other's opinion) but it seems like the deadline will stick. The negative views of the switch seem to stem from the fact that many craptastic digiTV boxes are sold cheap and people are buying them only to find some feature "not functioning" (ie. they don't know how to activate the feature through the lucklaster GUI or it just doesn't work). Plus, most of the elderly people are finding the learning curve a bit too steep switching from analog TVs to digital TVs.
I have a feeling that the US will find a similar problem quite soon, but it might be that the longer transition time will get people to switch more easily and transparently to a digital TV (when buying that thin-screen TV) than here. So, that idea of preventing the sales of analog TVs is a really good idea, and AFAIK, we haven't implemented such a solution here (which is a shame).