CBS's 'The Big Bang Theory' inched up to a series high on Thursday night, pushing the network to an easy overall win for the evening, while NBC's new presidential comedy "1600 Penn" got off to a so-so start. Meanwhile, the Critics' Choice Movie Awards posted its strongest showing since 2006, according to preliminary numbers. CBS took first place in the advertiser-friendly 18-49 demographic with a 3.8 rating/10 share and in total viewers with 14.7 million. Much of that can be attributed to "The Big Bang Theory" at 8 p.m., which ticked up 3 percent from last week to hit a series high of 6.3/19 and also hit a series high in total viewers with 19.8 million. #This, after the series hit an all-time high in total viewers last week.#The rest of the network's offerings showed minor declines, after facing repeats last week. "Two and a Half Men" at 8:30 posted a 4.2/12 with 14.3 million total viewers, while "Person of Interest" at 9 took a 3.3/9 with 15.6 million total viewers. "Elementary" the following hour had a 2.4/7 and had 11.3 million total viewers.