I first tried to save a few dollars by buying a non-Apple adapter, but discovered my selection didn’t work on my 2015 Samsung 4K Smart TV. This Apple USB-C to Digital AV Multiport Adapter works perfectly fine on my 2015 Samsung 4K Smart TV. This adapter also has a charging port which I tested while watching a video.
https://www.amazon.com/Apple-USB-C-Digital-Multiport-Adapter/dp/B07WF96FY5

