Honey Boo Boo has been somewhere with her family and I believe it was Washington D.C. If she was in the capital of the U.S., then the folks at Yahoo! TV picked the wrong homophone:
If they meant she was in the Capitol building, then they picked the right word, but should have capitalized (no pun intended) it.
If you’re writing about the building where a legislature meets, the word you want is capitol. If you’re writing about money, the top of a column or pillar, an asset, a city or town, or anything other than a building, it’s capital.