Also entertained by this thread, from Phoenix.
At least our no-account Spanish-language Class A Fe-TV station, KCOS-LP, broadcasts station ID on a desert landcape background. It's been nearly non-stop since August, with the same three-song jazz/rock background audio repeated over and over and over again, but it beats the heck out of ALARM MODE.
Sounds like the LP in Phoenix has a bit more polish on that long running 'show' with backgroung music no less ! In the hinterlands here, in VT, W61CE gives it to you straight, black backround, small white letters on the bottom of the screen with those immortal words of engineering wisdom.... .. "Installation: Alarm Mode"..