Stephen Colbert CBS' top choice to replace David Letterman

David Letterman announced last Thursday that he will soon retire as host of CBS' 'Late Show' and ever since, the Internet has been rampant with speculation about a replacement. Looks like Stephen Colbert is CBS' top choice to replace Letterman when the time comes, although no formal contract discussions have taken place. Apparently, Colbert first engaged the network while Letterman was still m ...