General TV History

Between 1972 and 1976, just prior to the ban on tobacco advertising on TV and radio, all tobacco ads had to be followed by a warning like this - “Medical authorities warn that smoking is a health hazard”.

I’ve heard the audio version of this (this youtube vid has a couple of examples), but can’t seem to find anything which ran on TV. According to the legislation, it seems that the message had to be shown at the end of each commercial on a completely black background in large white text while the audio statement ran. Anyone got anything related to this?