What Happens if CBS Pulls the Plug on Nielsen Ratings “Big Bang Theory” and “NCIS” data won’t go away — it’ll just get really expensive Photo: Bill Inoshita/CBS Tony Maglio and Tim Baysinger December 20, 2018 @ 12:44 PM Share on Social Media Read Next ‘Sex Education’ Season 4 Review: Netflix Dramedy Delivers Messy but Satisfying Ending