Ed Meza @edmezavarIn their new Spanish series “Días Mejores,” showrunners Adolfo Valor and Cristóbal Garrido explore the difficulties of overcoming the loss of a loved one and the challenges of being left a single parent.They were inspired by the story of an acquaintance who, after the death of her partner, sought help in a grief therapy group. Hearing about the intense dynamics of the group and the participants’ struggles to move forward, Valor and Garrido concluded that it would make for riveting TV.“Días Mejores,” which translates to “Better Days,” premieres in the Malaga Festival’s ever more important Pantalla TV sidebar.The dramedy follows Sara (“Velvet” star Marta Hazas), a mother who suddenly finds herself a widow and unable to comfort her troubled young son.