What about magazines?
Because I can't count the number of times I've looked at a magazine out of boredom and seen a page along the lines of
"Top 10 supplements" followed by 8 of teh top ten being taken by maximuscle, who it appears also pay for the most advertising with the mag. Or the "A study has shown olay is the number 1 most popular brand" with tiny fine print you need a magnifying glass to read which states the survey was taken by people who were buying olay products.
Maybe to level the playing field we should ban adverts altogether. How can it be anticompetative for somebody to pay for advertising then?