RTINGS has restarted its Longevity 3.0 testing, which involves monitoring 12 televisions and 12 monitors for about two years. This test focuses on various OLED display technologies, including WOLED, QD-OLED, and Primary RGB Tandem, as well as RGB MiniLED. The earlier test, which lasted almost three years and involved more than 100 televisions, identified potential issues with LCD backlighting and confirmed that burn-in—where static images leave a visible imprint—still affects OLEDs over time. Since the first experiment, display technology has advanced significantly, and Longevity 3.0 aims to track these developments. The 2026 OLED models entering the test will be compared at equal brightness levels. Selected televisions include the LG G6 and C6, Samsung S95H, S95F, R95H, Sony BRAVIA 7 II and BRAVIA 9 II, Hisense UR8SG, and TCL RM9L. These devices will mainly display content from CNN, whose banners and fixed logos are especially challenging for OLED screens. Most of the devices are set to their most accurate image mode and maximum SDR brightness. Brightness and uniformity measurements will be taken every two months. RTINGS will give special attention to three 2025 models: the LG C5, Samsung S90F (in 65 inches with a QD-OLED panel), and LG G5, which are expected to achieve comparable brightness, around 470 cd/m² on the white band of CNN. The goal is to directly compare three OLED architectures: traditional WOLED, QD-OLED, and Primary RGB Tandem OLED. According to an analysis published on August 14, recent OLEDs have not shown a clear and systematic improvement in resistance to burn-in compared to older models. On the LCD side, the test will observe the aging of new RGB MiniLED backlights, a feature that had previously shown some failures in the backlighting system of certain LCD televisions. The test also includes OLED monitors and an experiment where devices are exposed to sunlight. Monitors benefit from a protocol that simulates real-world use, with six scenarios combining office work and gaming, including comparisons between WOLED and QD-OLED. RTINGS will compare the LG 27GX704A-B to the Samsung Odyssey OLED G80SH in office work scenarios, while other screens will undergo scenarios composed of 75% gaming. Their team will measure how the light or dark mode of Windows affects screen burn-in. A parallel experiment involves four OLED screens, two televisions, and two monitors that will remain turned off near laboratory windows to study the effects of prolonged sunlight exposure. Part of each panel will be covered to compare the exposed area with the one that is not, while two LCD screens will serve as a control group. Although the first measurements do not yet provide conclusions, RTINGS notes that testing a single unit of each model is not enough to determine the reliability of a series. However, this new cycle should offer valuable insights over the next two years on how the latest generations of OLED and MiniLED displays actually age.