The Netflix app received an update on the App Store earlier this week on January 17, and that update appears to have been the catalyst for Netflix's integration with the TV app. Prior to this update, doing a search via Siri to watch a movie that's on Netflix would redirect to the Netflix app and then require you to select the move to start watching it. However, in the most recent update, doing a search for a move that's on Netflix will now initiate an automatic stream of the title you're looking for. Then, if you back out of the movie at any point, it will show up in your Up Next section of the TV app so that you can resume playback at any point.
As great as it is to see Netflix start the integration process with the TV app, things aren't perfect quite yet. Netflix titles currently don't show up in the Recommended section, and you aren't yet allowed to add Netflix originals to your Up Next queue. Additionally, the title art that is displayed for a Netflix title in the TV app is still a bit wonky.
A report broke late last week that Apple is in talks to start creating original shows and movies for their products, and while it shouldn't take too long for Netflix to be fully implemented into the TV app, it's obvious that this isn't Apple's main priority at the moment when it comes to video content.