This is why I have a DVR where I record series and movies I want to see. And Netflix and Amazon Prime that tell me when new episodes/seasons of something are a

This is why I have a DVR where I record series and movies I want to see. And Netflix and Amazon Prime that tell me when new episodes/seasons of something are available. And a podcast app that auto-downloads new episodes of all the shows I subscribe to. Why would I want to get yet another email telling me some show has a new episode when the service by which I'm getting that content (unless it's OTA - but TiVo will DVR those) already tells me when something new is available?