LG 48-inch B5 OLED 4K Smart TV

Model details

Additional useful information

Use this exact-model guide to set up LG OLED48B5PUA, distinguish its B5 OLED port and motion limits, connect eARC on HDMI 3, and check the 300 x 200 mm mount, supplied stand, remote, tuner and audio boundaries before ordering accessories.

OLED48B5PUA is the forty-eight-inch member of LG's 2025 U.S. B5 range. It uses a 4K OLED panel with 3,840 x 2,160 resolution, Alpha 8 AI Processor 4K Gen2, and 120 Hz native panel with VRR up to 120 Hz. LG lists Dolby Vision, HDR10 and HLG, plus FILMMAKER MODE; its audio table lists Dolby Atmos and AC4, Dolby Digital AC3/EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA and apt-X codecs as listed by LG. The U.S. tuner is limited to ATSC 1.0 terrestrial and QAM cable, so antenna and cable guidance should not be expanded into a satellite or NEXTGEN TV claim. The forty-eight-inch cabinet has its own stand and VESA specification even though picture-platform facts are shared within the B5 OLED range.

For tabletop setup, assemble only the stand parts shown for OLED48B5PUA in its Quick Start Guide, place the cabinet on furniture that supports the complete footprint, and connect AC power after the stand or wall installation is secure. Source devices use four HDMI inputs; all four are listed for 4K 120 Hz, VRR, ALLM and QMS, while eARC is assigned only to HDMI 3. A receiver or soundbar needing audio return belongs on HDMI 3, the labeled eARC port. Network setup can use Ethernet or Wi-Fi 6E and Bluetooth 5.3; complete webOS setup and software updates before diagnosing app behavior.

Troubleshooting starts with the connection path: if a source has no picture, verify the selected input, source output format, and cable class before changing global settings. For missing return audio, check HDMI 3, SIMPLINK/CEC, eARC mode, and the audio device's own supported formats. Restart and update the TV before using Reset to Initial Settings, because a factory reset removes accounts, apps, network settings, and personal configuration. The 300 x 200 mm figure describes hole spacing only. Mount load, wall construction, ventilation, screw type and engagement depth remain controlled by LG's exact owner manual and the mount maker's instructions. LG identifies MR25 as the supplied remote for this model.

• HDMI: four HDMI inputs; all four are listed for 4K 120 Hz, VRR, ALLM and QMS, while eARC is assigned only to HDMI 3
• Audio return: eARC is assigned to HDMI 3
• Other connections: two USB 2.0 inputs, optical digital audio output, Ethernet and one RF antenna/cable input
• Wireless and software: Wi-Fi 6E and Bluetooth 5.3; webOS 25 with Google Cast and Apple AirPlay support
• U.S. broadcast tuner: ATSC 1.0 terrestrial and QAM cable; no satellite input is listed
• Audio formats: Dolby Atmos and AC4, Dolby Digital AC3/EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA and apt-X codecs as listed by LG
• Wall mounting: 300 x 200 mm VESA pattern; screw depth, mount load and wall fasteners must come from the exact manuals
• Included controller: LG Magic Remote MR25
• Tabletop installation: the supplied stand parts are specific to OLED48B5PUA and its 48-inch cabinet