That's an interesting question so I did some quick research. It seems you have to make your not smart TV smart. There are two ways to do this: 1.) use a streaming stick or set-top box, like Roku, ChromeCast or Apple TV; 2.) connect your computer to the TV with an HDMI cable.
One article went on to say "If your TV doesn’t have an HDMI-in port, it probably came in with the Ark and it’s time to get a new one." A little judgmental, but… .
The sticks and boxes will provide instructions on set-up and streaming.
On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.
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