(Image credit: Mammoth Screen / BBC)

Paternity issues still plague Elizabeth following the early birth of her baby son

The third series of this beautiful costume saga has hit the ground running thanks to exciting new characters and promising storyline threads.

Tonight, after giving birth to son Valentine last week – a month early – Elizabeth's still worried that his daddy is first love Ross rather than husband George. As her ambivalence to her newborn grows, George is smugger than usual as his new heir is christened. Dastardly George is also busy courting Sir Francis Basset for the vacant magistracy, a role we're sure he would only use for good – not!

Meanwhile, an old friend of Ross's father, pirate Tholly Tregirls (Shameless's Sean Gilder), makes his debut.