HBO Sign Off (1975-1977) (with color bars)

From 1975 up until somewhere around 1977, the HBO sign-off cartoon had different music and would be preceded by a following announcement in a background with the slide of the HBO logo and a cartoon drawing of doves and baby chicks in a nest.

The 1977-1981 sign off has been uploaded a dozen times by a lot of people. I'm like, this rare sign-off from 1975-1977 is very rarely uploaded and when I saw the video of it, the recording must have stopped. What if it went to the color bars after 11 seconds of the black screen?

At the time, after the sign-off cartoon ended, the color bars were slightly higher pitched up until July 1981. Nobody seemed to know about that back in 1975-1977, so this is the time to imagine the actual 11 seconds after the rare sign-off cartoon with different music.