I found Dresden because of the TV show. 

Sort of. 

The fact is, I watch almost no television whatsoever; I prefer reading.  But one of my best friends is the opposite:  he seldom reads fiction, but is totally addicted to the Sci Fi channel.  We got together for lunch one Saturday and he says, "Have you seen that show 'The Dresden Files'?"  No, I hadn't, because I don't watch TV, duh. 

He says, "Well, I have, and they're based on these books, you see.  I bought two of the books, but haven't read them yet.  You wanna read them, tell me what you think?"  He hands me Storm Front and White Night. Sure, I thought, I'll take a stab at them, though I'm more about horror than straight fantasy.

Needless to say, I finished both books before Monday, FLEW to the nearest Borders, and stood there in the SF section, saying ugly words because they only had half the books in stock.  It took me three days to get the entire set (Small Favor had come out like a week before), and about a week to read the whole set.

Now I'm so addicted that I own a hard copy, an e-copy, and an audio copy of all the books (that are available, on the audios), and DVD's of the tv show.  AND I've bought copies of the books for my brother and my best girlfriend, and bought an extra set of audios for my husband to keep in the car

So I did come to the books because of the show, but only indirectly.