The Big Bang Theory delayed the scheduled start of Season 8 production Wednesday as actors and producing studio Warner Bros. discuss new pacts. Contracts for five of the top-rated comedy’s stars – Jim Parsons, Johnny Galecki, Kaley Cuoco-Sweeting, Simon Helberg and Kunal Nayyar – expired after last season, and the actors and the studio have yet to agree on new salaries. Mayim Bialik and Melissa Rauch are only main cast members who have signed so far. At this point, the delay would not affect the CBS comedy’s Sept. 22 premiere date. The show, which will start the fall season on a Monday, is scheduled to open with a one-hour premiere
