I vaguely remember the ad. What really sticks in my head from the early 80s is the jingle -- "Have you played Atari today?"
I was an avid reader of the Atari Age magazine back in the day, on those sporadic occasions when they actually published it. One month they wrote ad article about how the company was originally going to be call Syzygy, but fortunately they opted for Atari instead. The pointed out that "Have you played Syzygy today?" didn't have quite the same ring to it.
It's probably also fortunate because of the planetary alignment -- syzygy -- in 1982. I seem to recall the crack pots of the day predicting the destruction of the world due to out of control tidal movements resulting from the crazy gravity.
Ah, well. I'm off to find my Buckner and Garcia tape.