The wireless foundation of both TVs is identical — Wi-Fi 5 (802.11ac) and Bluetooth 5 are the shared baselines, and both support Miracast for screen mirroring. The meaningful separation comes from the details. The TCL 75P8K steps up to Bluetooth 5.4, a newer revision that improves connection stability, reduces interference in crowded environments, and offers better energy efficiency for connected peripherals like soundbars or headphones. It is not a dramatic leap, but for users who rely heavily on Bluetooth audio, it is a tangible advantage over the LG's Bluetooth 5.0.
On the physical port side, the TCL again pulls ahead. It offers 4 HDMI 2.1 ports compared to the LG's 3 — a practical difference for anyone running a full home theater setup with a console, a streaming box, a soundbar via ARC, and a Blu-ray player simultaneously. Both share HDMI 2.1 as the standard, which supports 4K at high refresh rates and eARC, so the quality per port is equal; it is purely a matter of quantity. The TCL also includes a 3.5mm headphone jack that the LG omits entirely, which may seem minor but is genuinely useful for late-night listening without a wireless setup.
With the same wired Ethernet port, the same single USB port, and equivalent Wi-Fi, neither TV has a structural connectivity disadvantage — but the TCL 75P8K accumulates a series of small, real-world wins. An extra HDMI port, a newer Bluetooth revision, and a headphone jack collectively make it the more versatile option for users with complex setups, giving the TCL a clear edge in this connectivity group.