Related Clues:

• They're nothing new
• ...while Mark L. Walberg currently hosts PBS's "___ Roadshow"
• Heirlooms, often
• Old things
• Some auction offerings
• Appraised items on a PBS "Roadshow"
• Valuable old objects
• Old objects sought by collectors
• Objects grown valuable with age
• They have to be over a hundred years old
• Objects that have acquired value with age
• Quit in a sane way with age
• Hostile towards endless pursuit of relics
• Old objects, valuable perhaps
• Collectable old objects