The oldies station in the building where I work runs ABC's Pure Gold/Classic Hits pretty much 24/7 with DCS automation. However, we are live on occasion. Given that it's the number one station in the market, we do get a fair share of remotes, especially in the summer. We run a library of TM Century Gold Discs when we run live. We actually don't have any bumpers for when the station is live. It's pretty much me opening the mic and talking between every song. I've wondered if, maybe, we should take those old cart machines for the Hot AC out of the prod room and move them to the oldies station, but it's not likely to happen since we're not live very often at all. In fact, when we run satellite on the oldies, or I guess I should get into the habit of saying "classic hits" now, station, the DCS and the satellite are run through a switcher while the board is left completely dead. We use that studio as an alternate production studio since we can put the mic in program and never go out over the air! If you're even more curious, we record those spots on minidisc, use CD's for the background music and import them into the audio server in the main prod room.
By the way, I've been told I've also worked for the first station in the world to run 100% of its music on hard drive. That was KOQL in Columbia, MO. While I didn't work there until after they got AudioVault installed, I was told they had about the Rube Goldberg setup you describe, Goat Rodeo Cowboy, when they first went to an all hard drive setup! I was told there were about 6 hard drives cabled together.