Among television’s best bets for Wednesday:
:How do whales find mates? We checked; there’s no MammalMingle.com. So, watch “Sex in the Wild,” instead. 9 p.m., PBS.
In “Top Chef Duels,” 18 leading foodies from past seasons of the “Top Chef” franchise go head-to-head in culinary smackdowns. The show will fork over $100,000 to the winner. 10 p.m., Bravo.
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