Unlike some of its rivals, CBS only has a handful of new shows (the network’s entertainment president uses the term “luxury problem” every year), but there’s a couple ones here that got a very positive reaction at their presentation to advertisers today. Check out these previews of J.J. Abrams’ latest, Person of Interest, as well as new comedy 2 Broke Girls. Plus there’s the very CBSsy dramas Unforgotten and A Gifted Man, plus the comedy bromance How to be a Gentleman.