You can install the BookMyShow Stream app on your TV from the TV app store (Currently available on AndroidTV, AppleTV, FireTV) to stream the movies you have bought/rented on your TV.
You can also buy or rent movies from BookMyShow Stream TV app (Currently available on AndroidTV and AppleTV).
PS: You need to login on BookMyShow Stream TV app if you want to buy / rent the movies or stream the movies that you have already bought / rented.