david: chris gersch, have a great weekend, chris.l: shares of cbs went higher after signing a big tv talent to a contract extension. let's head back to nicole petroleum on the floor of the new york stock exchange with this one. >> david letterman a household name and loved by many viewers. they will be happy to know that cbs extended david letterman's contract through the year 2015. this will continue tv's longest-running late night host. 31 years and continues to count. so his show averages over 3 million viewers nightly, behind leno but ahead of jimmy kimmel. it will be interesting to continue to follow his following over the next few years into 2015.3 cheryl: what will he do after 2015? or is that going to go? >> i don't know. we'll see then. his studio is freezing if you ever been in it. wear a jacket. david: i miss johnny carson. cheryl: work with david asman. you like a good, cold, studio. david: i like a good cold studio, keeps you awake but nobody like johnny carson. cheryl: thank you, nicole petallides. >>> it is one of toda