There's are plenty of USB-C to HDMI cables and TVs also come with USB-C I outs these days. We're in a weird transition phase, but going back to multiple different ports would be silly.
Also maybe gamer TVs or more expensive models have USB-C inputs, I certainly have never seen one. Even in the monitor space, USB-C is seen as a premium feature. Even 5 years after the first laptops with USB-C.