I have always used HDMI 1 on previous tvs but I thought I read somewhere these ports now are 1.4, 2.0 etc on my TV on back where the ports are I dont see anything labeled it just has 4 ports and port 1 is for ARC. Thanks
If there are no specific labels or anything in the manual about the ports, they are all the same. Usually if a device has a different spec HDMI port it will be labeled with something like 4k 60hz or something similar to show the capability.