10 new 4K Blu-rays from September 2026 to add to your collection

TechRadar’s latest AV review highlights the best 4K Blu-ray releases for September 2026, focusing on picture and audio quality for home theater enthusiasts. The reviewer has upgraded their testing setup to a high-end Denon and Bowers & Wilkins 5.1 system, paired with an LG G6 OLED TV and a Panasonic DP-UB820 player. Featured titles include 'Supergirl' and 'Star Wars: The Mandalorian & Grogu'. The analysis praises 'Supergirl' for its vibrant color accuracy and precise Dolby Atmos sound mapping, while 'Star Wars: The Mandalorian & Grogu' is lauded for its 3D-like depth, high contrast, and immersive, powerful audio performance. These reviews serve as a guide for collectors looking to maximize their home cinema experience through premium physical media, emphasizing the technical superiority of 4K Blu-ray over streaming for testing high-fidelity audio and visual hardware.