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Arthur "The Fonz" Fonzarelli seemed like the perfect TV boyfriend once upon a time. His leather-jacket coolness, pompadour and groovy catchphrases "Ayyy" and "Sit on it" gave girls -- ... more and probably a few boys -- goose bumps when watching "Happy Days." But times have changed, and we want more from our dreamy, small-screen beaus than promises of endless motorcycle rides and burgers at Arnold's. We want smart, funny, charming men who inspire us, understand us and accept us for who we are. Just like in real life, the challenge is separating the winners from the losers. In honor of the Fonz, we give the thumbs-up to winsome dudes such as Will Schuester on "Glee" and the thumbs-down to womanizers like Don Draper of "Mad Men" fame. Read on for an extended list of TV's best and worst boyfriends.

(AP)