See bro, we are in 2025. Mostly everyone has HD TVs and 16:9 is the standard. All these years the Broadcasters waited for most of the customers.
This should have been done a long time ago. What's the point in having a 16:9 TV and watching channels in 4:3 stretched to fit the screen. As usual we are far behind from global norms. High time we convert channels from SD to HD & HD to 4K.