Detergent adverts
I have to say, I always took issue with the detergent ads back in the 90s (as did my Grandmother).
Ariel was especially guilty of it, however, it wasn't just Ariel.
It's evident in the Marks shirt ad.
They had a habit of saying they had a new improved version, and compared it alongside their old product, making that old product out to be rubbish, so basically they were saying that their product that you had continually been buying and using was always rubbish.
Made you feel a bit ripped off.
Thankfully, they don't really do this anymore (not that I have seen anyway). They just say something along the lines of "our best ever detergent", but they don't compare it alongside their previous version.