Please tell the name of the font used for the CBS wordmark in this 2007 logo for CBS

Infinity  Suggested by jerseygirl 
Taca Bold  Suggested by Daniel Dell 

Looks most likely a custom font.

This is the closest one I can find, but I could be wrong.

based on Infinity, an old Thirstype release no longer available.
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http://web.archive.org/web/20100225075639/http://www.vllg.com/Thirstype/Infinity#anel=poster-mudtyper-weights&panel=poster-usage