My father describes himself as a Pole of Lithuanian descent. At Southampton University, he read aeronautical engineering and then the family moved to Hong Kong - this was before I was born - where he designed aeroplanes. Back in the U.K., he worked as a civil engineer, although every spare minute was spent researching his family's history.
People can now get to see anything they want, in any shape or form, anywhere, on laptop, iPad or 'phone. What's not controllable, though, is the live element. So there's still a real thrill for TV viewers in watching actors pulling it all together and performing live, and a real challenge for the actors.