The year is still young, but through at least the first three and a half months of the year, Netflix’s “His & Hers” takes the crown for the most-watched series of 2026 — according to the latest multiplatform numbers from Nielsen. With 35 days of linear and streaming viewership in, “His & Hers” averaged 25.6 million viewers (of course, it being Netflix, that’s all streaming). Close behind is the first broadcast iteration of the Taylor Sheridan “Yellowstone” universe, the new CBS series “Marshals,” which averaged 25.24 million viewers as it got off the ground.…