Samsung PS42Q91H Owner's Instructions Manual page 50

Correct Disposal of This Product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with
separate collection systems)
This marking shown on the product or its literature, indicates that it
should not be disposed with other household wastes at the end of its
working life.
To prevent possible harm to the environment or human health from
uncontrolled waste disposal, please separate this from other types of
wastes and recycle it responsibly to promote the sustainable reuse of
material resources.
Household users should contact either the retailer where they
purchased this product, or their local government office, for details
of where and how they can take this item for environmentally safe
recycling.
Business users should contact their supplier and check the terms and
conditions of the purchase contract. This product should not be mixed
with other commercial wastes for disposal.