How much advertising will the American public accept? That limit is still unknown.
I read recently that on broadcast TV, 14 minutes of every hour is devoted to ads. On cable TV, it's 17 minutes. If it was fruit juice, nobody would want it, because it would be too watered down.
In French there's a word "publiphobe," meaning averse to advertising. Plenty of French people describe themselves that way, but I guess not many Americans.