Two run at the full 48Gbps that HDMI 2.1 is meant to signify, while the other two are HDMI 2.0 in all but name. The Bravia 3 II, meanwhile, runs all four of its HDMI ports at full bandwidth, with 4K at 120Hz, VRR, and ALLM available on every one of them. Or you can buy a receiver with enough HDMI 2.1 inputs to fix a problem the television introduced, which is several hundred dollars to restore functionality you thought you'd already paid for. Manufacturers are supposed to state which HDMI 2.1 features a product actually supports, but enforcement is, let's say, relaxed. What I'd check before buyingCount the fast ports, not the portsIf you're shortlisting a TV this year, I'd ignore the HDMI 2.1 badge entirely and go looking for two things.