One overlooked factor is the modern consumer being desensitized to advertising. This created huge advantages in the last 50 years but modern consumers see so much advertising that they are largely immune to it.
Good point! Having been exposed to a bombardment of advertisements since early in life, personally I don't think I'm influenced very much by them now (although that's up for debate).
Also, the TV is largely being replaced by Netflix and such, so the exposure to TV advertising is also falling in absolute numbers.
Also, the TV is largely being replaced by Netflix and such, so the exposure to TV advertising is also falling in absolute numbers.