Amazon's Prime Day offers solid discounts on 4K TVs, but don't forget about the importance of audio quality and streaming devices. Many modern TVs have poor built-in audio and slow app interfaces, but a soundbar or streaming device can improve the overall viewing experience. The LG C3 OLED is a top pick for its processing power and picture modes, while the Xgimi MoGo 2 Pro projector offers a portable 1080p picture with a built-in Bluetooth speaker. For streaming, the Amazon Fire TV Stick 4K Max and Roku Express 4K Plus provide fast and high-quality options. The Nvidia Shield TV Pro is great for gaming and serves as a smart home hub. Soundbars like Amazon's Fire TV Soundbar and Vizio's M-Series Dolby Atmos soundbar offer excellent audio quality at discounted prices. Whether you're looking for a new TV, streaming device, or soundbar, Prime Day has you covered.