In this subtitle the following words have the meanings indicated. “Person” includes an individual, corporation, business trust, statutory trust, estate, trust, partnership, association, two or more persons having a joint or common interest, or any other legal or commercial entity. “Used radio or television set” means any radio set or television set which is used, rebuilt, reconditioned, or repossessed. “Used radio or television set” does not include any set which is: Advertised or described and sold as antique goods; or Returned by a retail customer if the sale price is canceled, refunded, or fully credited.