Hi
Just a quick note to say this was such a useful post to find. The clock coming back was really annoying me when working at my desk, where the Spot is!
The movement detection makes sense and does seem to apply having just tested a bit.
The reason I was always getting the clock was that my Spot's camera has a little sliding cover I added out of paranoia and normally it is shut.
Tricky choice now - trust the camera and get the "music on" feature or cover it and see a clock, hmm.
Still, at least now I know and that is the main thing!
Simon