New Door Buster. Best Buy has a Sony 50X690E 50-Inch 4K Ultra Smart HDTV Sale for $449.99. Free Shipping.  This TV just fell in price. Rated 4.6 out of 5 stars. Not sold at amazon.

• 4K X-Reality Pro Engine
• Provides lifelike detail and clarity. See the details appear in buildings and trees as scenes become clearer, smoother and more natural.
• Improved contrast with Dynamic Contrast Enhancer
• Experience more life, more texture, and more energy in every scene with brighter highlights, deeper blacks, and more natural tonal gradation.
• Enhanced sound and clear dialog
• ClearAudio+ fine tunes TV sound for an immersive experience that seems to surround you. Hear music and dialog with greater clarity and separation.
• YouTube & Netflix Quick Access
• Access your favorite movies and shows quicker than ever. With YouTube and Netflix buttons built into the remote, you are one click away from endless entertainment.
• 49.5" screen (measured diagonally from corner to corner)
• Large enough to provide an immersive experience for everyone in the room.
• 2160p resolution for breathtaking HD images
• Watch 4K movies and TV shows at 4x the resolution of Full HD, and upscale your current HD content to gorgeous, Ultra HD-level picture quality.