Not much to report today on Day Three of the WGA Strike. However, it does seem as though both sides are digging their heels into the ground and seem unwilling to sit down with the federal-appointed mediator to discuss the contract negotiation any further, a decision which will have lasting ramifications in the months to come. Several high-profile series have shut down after work was unable to be completed this week, due to the fact that writers, showrunners, and actors have walked the picket line and not turned up for work. Expect confirmation today from studio NBC Universal that production on hit comedy The Office has in fact been shut down , as I reported yesterday. (For a hilarious and apt behind-the-scenes look at the striking writers on The Office , click here .) The tally of series that have either had shoots derailed or have shut down completely include: The Office, Old Christine, The Big Bang Theory, Two and a Half Men, Desperate Housewives (which was, however, expected to wra