After weeks of negotiations and two deadline extensions, television behemoths CBS Corp. and Dish Network appear to be nearing an impasse that would leave millions without easy access to CBS programs, including "The Big Bang Theory," local news and NFL football. CBS issued an ultimatum Tuesday to the satellite TV giant: Strike a deal or CBS-owned stations will go dark for Dish customers Thursday afternoon. CBS has been complaining for weeks about the lack of progress in the contract talks. It said Tuesday that it would not agree to any further extensions and instead would enforce a deadline of 4 p.m. Pacific time Thursday. Read more http://www.latimes.com/entertainment/envelope/cotown/la-et-ct-cbs-dish-deadline-20141203-story.html