Are you old enough to remember TV channel sign offs?

Assuming you are ancient like me do you remember those dark days before we were spoiled with 24/7 programming? At the end of the broadcast day the channels had sign offs. Some would do patriotic stuff. I remember one, no I can’t remember the channel and that is bad because there were so few that sang the “Blue Bird of Happiness.” I remember than because of a line in it that went something like ”for every cloudy morning there is a midnight moon above”. Then there was one I’d actually stay up to watch, it had a Lockheed F-104 Starfighter jet doing acrobatics while this dude recited a poem. Anyone remember that one? Part of the poem at least what I remember went close to ”Up, up the long delirious burning blue I top the windswept heights with easy grace, where never meadowlark or even eagle flew”. Then when it was all over it went to a couple of minutes of barcode then white noise. Then it was time to go to bed unless it was the weekend then it was time to switch over to the cheesy movies on Ch 2 from Tom LaBreeze Night Comfort Theater. If you are ancient enough surely you remember that or Kung Fu Chinese Theater? –There were some actual good Kung Fu movies there with the ubiquitous shoddy dubbing. Are there any sign offs you remember and can you remember the channel you seen them on?