TV Ratings: 'Elementary' dips, but 'Big Bang' and 'Person of
Interest' lead CBS Thursday  'Last Resort' falls, but not as
much as 'Charlie's Angels'  <p>Amy Acker and Michael Emerson of
&quot;Person of Interest&quot;</p>  Amy Acker and Michael
Emerson of "Person of Interest"  Credit: CBS Fast National
ratings for Thursday, October 4, 2012. The second week of
ratings on Thursday delivered a mixed bag of news, with the
constant being that "The Big Bang Theory" and "Person of
Interest" carried CBS to wins in most measures, even if freshman
drama "Elementary" took a dip. "Elementary" wasn't the only show
going down on Thursday, with "Last Resort" and "Grey's Anatomy"
also falling, while "30 Rock" delivered a low premiere for NBC.
However, "Glee" and "Parks and Recreation" posted small gains,
as did the early portion of CBS' night, while the drop for "The
X Factor" was barely noticeable.  See? Mixed news. [Note that at
least a touch of CBS' solid night may be a product of a Thursday
NFL game airing on the CBS affi