Tata Play has been a premium brand. They provides good services and customer support.
Earlier Tata Play was expensive & it can easily manages its cost from customer.
But after TRAI and OTT all DTH have to cut the prices of their services. Hence to increase revenue they have started showing promo which isn't a bad thing.
Also
Airtel has many promo channels , I have seen ACP Pradyuman promoting Hair & Knees related product on most of the channels
The reason Tata Play is a Brand
.
Same channel for different audience