Some viewers may be unaware, but striking screenwriters and actors have brought production to a screeching halt, including on many popular shows like “Law & Order” and “1923.” So fans will have to wait to find out if Janine and Gregory can really be just friends on “Abbott” or if Kim Raver’s Dr. Teddy Altman survives after collapsing on “Grey’s.” But there’s plenty of new characters and familiar faces heading to screens via already-completed shows that are ready to air.
