“Will & Grace’s” Megan Mullally and “Fresh off the Boat’s” Constance Wu have been cast in Hulu’s “Dimension 404,” plus more in today’s TV news roundup… CASTING Megan Mullally and Constance Wu have been cast in Hulu’s upcoming sci-fi anthology series “Dimension 404.” Inspired by the internet’s “404” error code, “Dimension 404” aims to evoke that 3 a.m. feeling of...