KIXI was voice-tracking 15 years ago, before hard drives were cheap. They had 2 CD changers with identical music library so they could segue from any song to any song. Bob Liddle (sp), the all-night guy, came in one day a week to VT his next week's shows.
They did have live drive-time shows, however.
And they had "younged-up" the format over the years, to appeal to more than the 65-plus listeners.
An earlier post suggested that maybe there isn't somebody in the studio. Of course there isn't. Just like there's nobody in the studios of other radio stations that either voice-track or run satellite. If there was somebody in the studio, he/she'd be live.
Automation is not new, even in the major markets. We did it in the late 60s and again in the 70s at the old KOL. The difference today is that you can do it inside a computer instead of with a bunch of reel-to-reel decks and cart machines. And it can sound live. However, you will get the occasional Christmas spot playing in June, or the Thursday PM weather on Sunday morning, or the wrong song title, and you won't get the Charleston Heston story.
On the other hand, satellite networks can sound live too, since they usually are.
Music of Your Life, however, is voice-tracked on the bird. The worst of both worlds... not local... and not live. ABC has a similar format, and several years ago, it was live. And the old fart on the mic, although not local, had the latest 3rd quarter football score. Then one day, there were new jocks, and the songs faded at inapproriate times at the top of the hour, and it was admitted they they were voice-tracking. I think every satellite network has some formats and time slots that are totally-automated.
I know why we use satellite in some dayparts in the small market, and I know why some major market stations might use national syndicated shows like Big D & Bubba or Howard Stern in the morning, but for the life of me I don't know why a Seattle station would grab MOYL off the bird when they probably have sufficient resources to voice-track locally and have better control of their play list.
Even in Aberdeen, WA the morning shows are all live and local. And we work with a much much smaller budget.