What's the problem? It's standard for new releases to have a gradual rollout. Look at most movies: first they're released in theaters, then 6-8 months later they're released for purchase as physical media, 1-2 months later they're available for streaming, then finally a year after that they're shown on TV. This is the way studios work so they can make more money from the same product. This isn't CBS doing something crazy or unusual, it's the business model of the industry.