A new teaser for Season 4 of "Hacks" has just come out. The comedy stars Jean Smart and Hannah Einbinder as a legendary TV personality and her writer-turned-producer who need each other, but are perennially at each other's throats. The 10-episode season of "Hacks" debuts on Max April 10 with the first two episodes; then one episode a week for four weeks. Episodes seven and eight debut together on May 15, followed by episode nine on May 22. The season finale debuts on May 29.