In India, HD is used as a way to attract rich people to watch TV. Broadcasters assume that rich people are not interested in linear TV and they only watch DVDs and Blu-rays on TV. So they think if we use HD broadcasting, they will subscribe to our channels.
So Zee has made 2 HD only channels &xplor and &prive. These will have low subscriptions in rural areas.
Similarly, Star has Disney International HD.
Now GECs like Star Plus and Zee TV are popular in rural areas. They will upgrade to HD hoping that they will get more subscriptions in rich communites.
But unfortunately, OTT has entered the scene and this is becoming the preferred way to watch TV in rich areas.