Google's guessing of your demographics is amusingly wrong sometimes (you can see the categories it puts you in).
> With TV, it’s all vague guess on their part about what kind of content people like
People with HBO have disposable incomes. People watching Nick or Disney channel are or have children, whose ages and genders can be further refined based on the shows in question. "You have a 8-11 year old daughter" is absolutely trivial to accurately glean from television, and is basically the single most valuable advertising demographic.
As to Disney watchers, my male collage roommate used to love those shows. At the extreme end MLP friendship is magic has a vastly wider following than the original target demographic.
They both correlate with demographic data, TV is swimply wildly inaccurate and not tied to a specific individual.
With TV, it’s all vague guess on their part about what kind of content people like. Are the people watching daytime soaps can be 18 or 80, it’s vague topic and time of day based filtering.