What's the Shell Life of a TV Show?

Streaming companies want to create elevated broadcasts. They're sort of like what made them once hip and call was creating very funky, new different types of products or shows. But they now want to go back and make what they call elevated broadcasts. What's the shell life of then a t v show? Because if you think of something like friends, you can watch it again and again. And where is a streaming company doesn't do that, because they're not selling it on to other people. The last series of friends are getting it paid m millions of dollars an episode. Thats why jerry sinfeld is so rich - syndication makes him even richer.