From a 1984-era hardboiled DC detective comic named Nathaniel Dusk, I found some rather smart ads for Atari 2600 era games as advertisements within the comic - both Joust for the 2600, 5200, and associated Atari home computers, and Masters Of The Universe: The Power Of He-Man for the 2600 and Intellivision:

    

The Joust text is kinda fun ("Joust. You don't play it... you live it"), but the Masters Of The Universe text (with some really high-end screenshots from 1984, apparently from the 'Intellivision with Supergraphics') has more Rights Reserved, Trademark, and licensing *s in the text than just about any other ad I've seen.

Maybe this betrays the series' origins as a merchandising line first and a coherent universe second - sorry, MOTU fans. Both ads are neat, though - I'll try to dig out some similar vintage game ads as time goes on. [Via PopCultScanFun.]