I dig deep into these kinds of claims, and this one's oddly hard to verify. You'd think Tupac hosting a talk show would've left some kind of paper trail, but no luck yet. No interviews, no promos, nada. Either this was super under-the-radar, or it's a hoax. Has 'The Nick …
Did some sleuthing guys. RetroCola was indeed a thing in the mid-80s, apparently a subsidiary of a larger beverage corp at the time. Their gambit was targeting the youth with arcades, neon, and lots of synth-heavy commercials. Managed to find a trademark filing date 1984, but the trail goes cold …