Starting today, Netflix users in the U.S. will have the option to sign up for a cheaper subscription. But, of course, there’s a catch. If you want to pay $6.99 a month, rather than $9.99 a month or more, your TV and movie binge sessions will be interrupted by ads, which runs counter to the original premise of Netflix and many other streaming services. But now, that’s changing. Marketplace’s Kimberly Adams speaks with Brandon Katz, an entertainment industry strategist at Parrot Analytics, who says Netflix needed to make a move like this.