Here are two print ads for the stuff, along with a peppy TV commercial from the mid-seventies.
New! Buc-Wheats is nutritionally improved (1978)
Now, compared to this bacon and egg breakfast, Buc*Wheats gives you more vitamins, more iron, 80% of the protein, 50% less fat
Try new Buc*Wheats (1982)
The only high-nutrition cereal with a touch-of-honey taste!