Here's a 1990s Apple Computer featuring Gregory Hines, an African-American dancer and actor. This commercial is a part of the so-called "AppleMaster" series of commercials, which showed artists talking about their personal Apple computers.

In this commercial, Hines is in a white room with a turquoise-highlighted Mac computer that's sitting on a white pedestal. Hines says that when he gets up in the morning, he turns on his Mac. He then tells the audience to "Look at that machine!" 

Hines says he's a "Mac man," meaning, perhaps, that he's a loyal Mac user. He says he remained a Mac man throughout "all the changes and the turmoil" because he "could see what was coming." 

He relishes the Mac's speed, 233 MHz. He also likes the shape of the Mac, which is a step-up from other Apple computers, namely, the 520C and the 5300; Hines says these other versions were too boxy. 

Hines speaks about his grandmother, who would make a certain "mmm mm hmm" sound whenever she liked something and thought it was good, or top quality. Hines himself makes the same sound as he looks at the Mac before him, a computer he prizes highly.