What is the DEAL with all these old episodes of “Seinfeld”?

As the war of streaming TV services heats up, tech and media giants like Comcast, WarnerMedia and Disney are racing to build their libraries. That means dropping hundreds of millions of dollars for the rights to old shows like “Seinfeld” and “The Big Bang Theory.” Plus: We’ll walk you through the Federal Reserve’s toolkit and take a look at the way oil prices affect the larger economy.