Catastrophe Channel 4, 10pm
Sharon Horgan and Rob Delaney’s charming and well-received romcom about an Irish woman and American man whose week-long affair leads to a pregnancy and subsequent tumultuous relationship, returns. The strength of the first series, which ended in February, was its intention not to shy away from the messy and awkward complications that naturally occur during a fledgling romance. And this new run begins in the same vein as the mismatched couple welcome their newborn into the world.