Went there looking for a TV that they were adverti...

Went there looking for a TV that they were advertising. At the store the sales fellow immediately started up selling. I knew what I wanted and insisted, finally he said they did have it, then he started pushing the extended warranty, I said I didn't want it, I thought he nodded. We get to the check out, it's on the bill! When I insisted I didn't want it, he literally would not take it off! Offered me a discount on the warranty but would not remove it.
I walked out.