There are several versions of this Bill Drake rockumentary. The one I recorded and filed runs through 1977.
In any case, this audio clip is the prologue and open for the production. The second voice heard is that of Bill Drake… Runs about 1:28
Here is the primary jingle for the Drake Chenault production of The History of Rock and Roll. Probably from 1969 when it was first syndicated. It started as a 48 hour documentary and was increased to 51 hours a couple years later. I know it aired in Seattle, but I don’t recall who aired it.