As Big Week on the Farm, on John Fagan’s farm in Westmeath, comes to a close, Áine Lawlor and Ella McSweeney challenge a surprise celebrity guest to take on a driverless tractor in an obstacle course race. We’ll be talking all things poultry; visiting an unusual sheep farm in Kilkenny and a high-tech tillage enterprise in Carlow. It’s the last chance for live lambing in the series.