There are several options available for cheap 55 inch flat screen TVs. Here are a few options to consider:
TCL 55-inch 4K Ultra HD Roku Smart LED TV: This TV is often available for under $400 and offers 4K resolution and smart TV capabilities with Roku built-in.
Hisense 55-inch Class H8 Quantum Series Android 4K ULED Smart TV: This TV is another affordable option with 4K resolution and smart TV capabilities, powered by Android TV. It is often priced under $500.
Vizio 55-inch Class 4K UHD LED Quantum Smart TV: This TV features 4K resolution and smart TV capabilities with Vizio's SmartCast platform. It is often priced under $500.
Power Guard 55-inch LED 4K UHD Smart Fire TV: This TV features 4K resolution and smart TV capabilities powered by Amazon's Fire TV platform. It is often priced under $400.
Keep in mind that prices and availability may vary depending on your location and where you shop, so it's always a good idea to compare prices from different retailers before making a purchase.