I don't blame you one bit. Always follow the money, they say! Also, how the study was run, where it was published (if at all), was it peer reviewed, how was it controlled, etc.
For what it's worth, I can't find a single paper (that I, the general public) have access to that deals in any way with Aspartame. I think the PBS article kind of got it wrong when they said:
However, a new video from the American Chemical Society pulls together the latest research on the food additive
The ACS is responsible for producing the videos through Reactions, their web series on YouTube.
Reactions is a show that uncovers the chemistry all around us. We answer the burning questions you’ve always wanted to ask:
-How can I get my smartphone battery to last longer?
-What if humans could photosynthesize?
-How can I get my teeth to look whiter?
-Why is pizza so delicious?
-Is it OK to pee in the pool? (Spoiler: No. No it’s not. Stop it.)
Reactions are happening everywhere. But the best ones are right here on YouTube.
Business/Press Inquiries: Reactions [at] acs [dot] org
Created by Adam Dylewski
Reactions team: Darcy Gentleman, Kyle Nackers, Sean Parsons, Elaine Seward, Janali Thompson, Kirk Zamieroski
Produced by the American Chemical Society
The fine print: The views expressed in these videos do not necessarily reflect the views or policies of the American Chemical Society or its members.