Premieres Monday, April 18, 2022 at 8 p.m. on KPBS TV + Wednesday, April 20 at 8 p.m. on KPBS 2 / On Demand. ANTIQUES ROADSHOW explores fascinating treasures that capture the beauty and power of our natural world, including a Regal Hawaiian guitar, an 1888 Joseph Strong oil painting, and a Tiffany glass vase. Guess which is $100,000 to $110,000!