Stephen Nolan and Sarah Travers travel around Northern Ireland meeting some of our most innovative entrepreneurs. This week, they check out a new range of table sauces, a self-grooming cat flap, a new prototype for allergy testing and meet a young student and her teacher who have developed a new range of books to help children and parents deal with cancer. They also attend the 2017 Invent Awards, which showcases Northern Ireland's leading entrepreneurs. Show less