I have a copy of a TV movie about Nixon's final days as president[1] that I taped in 1989. The main sponsor, and to my recollection, the only ad throughout the whole (long) movie was a series of AT&T "how to get it done" ads about the telecom future. I recall some stuff like faxing being present, but also mobile, in-the-field image sharing. Can't find it online, but they were pretty striking and I'd love to fire up the VHS stack to watch them again.
[1] https://www.imdb.com/title/tt0097354/