Filming at Smithills Open Farm SMITHILLS Open Farm is to feature in a Channel 5 documentary showcasing farming across the country. This Week on the Farm, which has been airing for several weeks, visits Smithills in its next episode, set to broadcast tonight at 8pm. Popstar JB from JLS will be visiting father and son duo Carl and Anthony Grimshaw, who run the singer through a typical day at the farm. Filming at Smithills Open Farm And Carl said that the experience was one to remember, allowing the farm to show how it serves the Bolton community and beyond. He said: It is a farming programme where they try to highlight local farmers as well as promote eating and drinking British products.