People keep comparing it to the cost of a visit to Starbucks or McDonalds- I don't go to them either.
I did some calculation on typical UK TV spending
If you go for the all you can eat TV, you're spending £1198.50 ($1700) a year, 76% of which goes to Sky, 12% to BT, 12% to BBC. That's $140 a month. For TV. 80% of which has adverts. Ouch.
If you go for basic Sky, you're spending £385.50 ($550) a year, 62% goes to sky.
If you don't have sky, you're spending £145.50 ($200) a year, or $17 a month for your basic 6 BBC channels and about 10 commercial channels (those are funded via adverts)
However the adverts are where it costs you.
Advertisers only pay for adverts because they get more than that value. I.e. the average american household funds TV to the tune of
$671 a year, or $55 a month, before any subscription costs. This money is recouped from the american public by the companies that are advertising, it's not optional for the population at large. If you don't buy any goods advertised on TV, then that just means someone else is paying your $671.