David Bianculli

Set in the 1930s, a new six-part BritBox series tells of the infamously non-conformist Mitford sisters, whose involvement in various political causes roiled their aristocratic parents.

In January, the characters of the FX series It's Always Sunny in Philadelphia showed up as court-appointed volunteers on an episode of the ABC sitcom Abbott Elementary. The crossover continues July 9.

Hulu's Emmy Award-winning series about a restaurant in Chicago returns for Season 4, with a cast of emotionally real characters and a set of writers determined to defy expectations.