Second-screen technology was one of the big topics at the recent Cable Show in Washington, D.C. Motley Fool analyst Rex Moore was at the event and chatted with Akamai's (AKAM 0.42%) Kris Alexander about how so-called "couch commerce" is opening up new revenue streams for retailers, advertisers, and programmers.

In this segment, Kris talks about the explosion of connected devices such as Apple's (AAPL 1.27%) iPads and Google's (GOOGL 0.55%) Android tablets, and what it means for second-screen commerce.