A great question. It should have been 5 years ago!
When you watch streamed content at home, that content comes to you from a server, and arrives to a device or app on your TV. This can be an Apple TV box, a Google Chromecast, Amazon Firestick, Roku box, or just the Netflix app on your smart TV.
That is all the "compute power" and bandwidth that is needed to make interactive content respond to you on your TV. So why hasn't it happened already?
There have been a few small attempts at it! Netflix presented their content through their smart TV app. Those shows included Bandersnatch (where viewers choose how the story unfolds), Cat Burglar (viewers answered trivia questions) and more.
But let's take a look at what else we've had available in that timeframe on our TV. What about Google's Stadia? Using just the Chromecast dongle and the Stadia game controller, "viewers" could play fully interactive games! Or how about Oculus Quest 2, where viewers could watch their friend wearing a headset go through VR experiences? Of course on the TV they weren't in VR. But couples can play together and solve mysteries, explore new worlds and new civilizations, to boldly go where no man... wait ... that is a different blog entry.
So it should be possible to do amazingly interactive things with content on our TVs. We at TotalVU believe this so strongly we see it as a part of the future of entertainment.