> But if the internal storage of the TV (or the processor) can't handle above 100Mb/s it'll never practically matter.
UHD Blu-Rays already exceed 100mbit/sec. That is current commercially distributed consumer content that requires gigabit to stream properly over a network.
Any 4K capable smart TV or streaming device should have a gigabit ethernet interface, no questions asked. 1080p devices, sure, they can get away with 100mbit just fine, but 4K devices have no excuse.
The fact that LG still to this day ships OLED TVs with potentially five digit price tags and 100mbit ethernet ports is a level of cheapness that I can not fathom.
And they handle gigabit just fine, you can plug a USB gigabit adapter in to the TV and it works entirely as expected.
I've seen more devices that have a GB port and can't do anything useful with it than (I suspect) the other way around.
That said, I've never even checked to see what speed my TV connects at.