India, Dec. 17 -- Bluetooth is printed on almost every smart TV listing now, but that label can hide two very different experiences. On some TVs, earbuds pair quickly and late night viewing becomes easy. On others, Bluetooth is mostly there for the remote, and the moment you try headphones, the promise falls apart. That mismatch between what shoppers expect and what the TV actually supports is why this feature causes so many returns.

We look at what Bluetooth on a TV usually covers, how to spot true Bluetooth audio out, and why lip sync delay shows up even when pairing succeeds. We also flag the spec lines that matter on Amazon, the menu options that confirm support, and the situations where a small Bluetooth transmitter makes more sense...