Dish customers in 14 markets will only be able to see the 326 Big Bang Theory reruns that air every night in syndication if no deal is reached with CBS.In a few hours, the deadline for Dish Network and CBS to reach a deal — or to agree to extend their current arrangement while they continue hammering out details — will expire, meaning millions of satellite subscribers around the country could be without access to their local TV CBS station. The blackout would affect stations that are owned and operated by CBS Corp.