I think a lot of it is the shifting demographics of TV watchers; in the '90s, everyone watched TV. Now, I think it's mostly the old and the average-to-poor, so it makes sense you want to advertise medical stuff, as that's probably the most you can squeeze out of both of those groups.

But yeah; I'm looking at ridiculous meatspace advertising opportunities for my own company (which targets technically skilled customers) and TV isn't even on the radar.

Now, if Netflix could figure out how to advertise things other than movies without pissing off their customer base? that'd be pretty great. I'd buy space on the inside of the DVD envelopes where they push other movies, if I could geographically target tightly enough, and if I could afford it.

The other interesting thing, I think, is that to a non-tv watcher, viagra, is inexorably linked to poorly-done scams and obviously-fake drugs. Because of how this product was marketed to me, I associate it with illegitimate and dangerous products. It seems there is an advertising lesson in that, as well, though I'm not sure what the lesson would be.