Check it out, I found TaB in one of the local supermarkets! I have vague memories of my mom drinking it in the mid-to-late 1960's, but mostly what I remember about it is that it tasted like shit. So, naturally, I bought a sixpack.
My tastes must have changed since I was ten years old, because TaB doesn't taste so bad to me anymore. That's not to say it actually tastes good, but it's better than Diet Coke. TaB has a better cola flavor - one that breaks through the aftertaste, unlike Diet Coke's diluted extract of ass flavoring.