In a CNN poll released on April 1st, the median guess on what percentage of the federal budget goes toward the Corporation for Public Broadcasting was 5%, implying a subsidy of nearly $180 billion dollars for public television and radio. Obviously, the reality is quite different: public broadcasting is responsible for only a tenth of one percent of federal spending.
This chart of public perceptions v. budget reality is a good argument for taxpayer receipts.
Note: “Perception” numbers add up to over 100% because survey respondents were asked about each item individually; they weren’t given a blank pie to slice, but would have had to keep track of their answers themselves. “Actual” numbers add up to less than 100% because certain parts of the budget (interest on the debt, various discretionary programs) were excluded from the survey and so are not shown in comparison.