The Next Generation; Sherlock Holmes Baker Street film set, Manchester

Part 1 of 3. Season 17 begins in Corpus Christi, Texas, where a million-dollar discovery is made: an oil painting created by an 18-year-old Diego Rivera in 1904. Other items include a 1967 painting by Alexander Calder; a Japanese bronze of a mythical figure; and a giant Fisk "Tire Boy" sign.