"On the Loose" was an awesome song, and the video was pretty cool, too.
Saga is another one of those bands who aren't usually considered prog, but they had more going on musically than most pop bands, sometimes a lot more. Just the idea behind The Chapters is so prog.
I had an old bootleg I found a lot time ago with them playing The Chapters back when there were only eight chapters. Played the heck out of it. I picked up the official Chapters Live with all 16 parts, and it's pretty cool.
I've wanted to get into them a little bit more, but it doesn't take very long for Michael Sadler's voice to start bothering me. It's a great voice, but it seems somewhat limited and ends up making all their stuff sound the same.