It looks like Android TV supports recording live TV: https://developer.android.com/training/tv/tif/time-shifting
But does any TV implement it? I'm specifically asking about the feature where you at a usb hard drive, and you can record TV into that hard drive.
I'm specifically looking at the below TV, but I'm asking the question in general.
I have Sony Android TV (2015) and it allows live TV recording on USB HDD.