As ANTIQUES ROADSHOW arrives in Orlando, Florida, host Mark L. Walberg and appraiser Arlie Sulka venture to neighboring Winter Park and the Charles Hosmer Morse Museum of American Art, home to a breathtaking collection of works by Louis Comfort Tiffany. At the Orange County Convention Center, ROADSHOW experts uncover a new cache of treasures, including a rare photo signed by the entire cast of the hit TV series "Bonanza"; a beautiful sterling silver Tiffany vase; and a stunning collection of scarce and delicate etchings and dry points by James McNeill Whistler, with a combined value of $130,000 to $190,000.