Back again is the TCL 55S434 55-inch 4K TV with HDR and Android built-in for $250.
It has great specs for the price (specifications).
Similar to Roku or Fire TV, this TCL's operating system can install apps from a huge list of Android TV apps such as Netflix, HBO, YouTube, YouTube TV, Hulu, Prime Video, and others.
Also has a RF antenna input for free over-the-air channels (RF antenna sold separately).
The Android works with Cast from a mobile device, where you can:
Share a Chrome browser page from your computer onto the TV,
Cast a Google Meet to your TV, and
Play videos from YouTube, Facebook, and others from your computer, mobile device, or Google Home smartspeaker to your TV.
We have the older model TCL 55S405 with Roku built-in, and found the TV to have an excellent quality display for the price.
Certainly many higher-end TVs will have a better quality display, like Sony's XBR and any OLED display, but those cost much more than this $250 deal.
TCL 50S425 50-inch 4K TV with Roku for $280.
We love the TCL brand because of its great quality HDR display, thin profile, and built-in Roku with voice control and some of the most apps available on a TV.
Similar deal is available at Best Buy.