Is the LG B6 good for gaming?

Yes. It supports up to 120 Hz, auto low latency mode, Game Mode and variable refresh rate across AMD FreeSync Premium, NVIDIA G-SYNC and HDMI Forum VRR, which suits current consoles and gaming PCs.

How does the B6 compare with LG's C-series OLEDs?

The B6 uses the same self-lit OLED approach and 120 Hz gaming features, but the C-series generally offers a brighter panel and a more powerful processor. The B6 is the value-focused entry into LG's OLED line.

Do I need a soundbar?

The built-in speakers output 20 W with Dolby Atmos decoding, which is fine for casual viewing but thin for a 65-inch set. A soundbar or AV receiver over eARC will give much better impact.

Yes. It uses a VESA 300 x 200 mm pattern and weighs 37.7 lb without the stand, so check your mount is rated for that weight. Without the stand it is 1.8 in deep.

The TV, its stand, and the included remote. Cables and a wall mount are not included, so plan for an HDMI cable and a mount if you wall mount it.

How far should I sit from a 65-inch TV?

A typical range for a 65-inch class screen is about 8 to 13.5 ft (2.4 to 4.1 m). Closer seats favor 4K detail; farther back is more comfortable for mixed viewing.