Just to clarify the tax rules for charitable deductions when you receive something of value in return --

Allan, you wrote:
"Well, I guess it is all how you look at it. I work for a public television station. We give thank-you gifts for people that donate to our station. The people are not buying the items, they are getting a thank-you gift for donating to us. This is the way Public Television has gotten around tax laws. It is completely legal. But let's face it, people are buying the items that they can't get any other way."

It's not quite that simple. If your public TV station offers a book or DVD, etc. in return for a pledge of money, only the excess value of the pledge (above the fair market value of the book or DVD) is deductible as a charity / non-profit contribution. See excerpt from IRS Publication 526 below. I'm not saying that people don't ignore this, but it IS the law. (Generally, a de minimis benefit can be ignored.)

Contributions From Which You Benefit

If you receive a benefit as a result of making a contribution to a qualified organization, you can deduct only the amount of your contribution that is more than the value of the benefit you receive. Also see Contributions From Which You Benefit under Contributions You Cannot Deduct, later.

If you pay more than fair market value to a qualified organization for merchandise, goods, or services, the amount you pay that is more than the value of the item can be a charitable contribution. For the excess amount to qualify, you must pay it with the intent to make a charitable contribution.

Example 1.

You pay $65 for a ticket to a dinner-dance at a church. All the proceeds of the function go to the church. The ticket to the dinner-dance has a fair market value of $25. When you buy your ticket, you know that its value is less than your payment. To figure the amount of your charitable contribution, you subtract the value of the benefit you receive ($25) from your total payment ($65). You can deduct $40 as a charitable contribution to the church.

Example 2.

At a fund-raising auction conducted by a charity, you pay $600 for a week's stay at a beach house. The amount you pay is no more than the fair rental value. You have not made a deductible charitable contribution.

Athletic events. If you make a payment to, or for the benefit of, a college or university and, as a result, you receive the right to buy tickets to an athletic event in the athletic stadium of the college or university, you can deduct 80% of the payment as a charitable contribution.
If any part of your payment is for tickets (rather than the right to buy tickets), that part is not deductible. In that case, subtract the price of the tickets from your payment. 80% of the remaining amount is a charitable contribution.
Example 1.

You pay $300 a year for membership in an athletic scholarship program maintained by a university (a qualified organization). The only benefit of membership is that you have the right to buy one season ticket for a seat in a designated area of the stadium at the university's home football games. You can deduct $240 (80% of $300) as a charitable contribution.

Example 2.

The facts are the same as in Example 1 except that your $300 payment included the purchase of one season ticket for the stated ticket price of $120. You must subtract the usual price of a ticket ($120) from your $300 payment. The result is $180. Your deductible charitable contribution is $144 (80% of $180).

Charity benefit events. If you pay a qualified organization more than fair market value for the right to attend a charity ball, banquet, show, sporting event, or other benefit event, you can deduct only the amount that is more than the value of the privileges or other benefits you receive.
If there is an established charge for the event, that charge is the value of your benefit. If there is no established charge, your contribution is that part of your payment that is more than the reasonable value of the right to attend the event. Whether you use the tickets or other privileges has no effect on the amount you can deduct. However, if you return the ticket to the qualified organization for resale, you can deduct the entire amount you paid for the ticket.