The Tommy Tiernan Show (and let’s face it, who isn’t?) will be delighted to hear that the series is returning.The chat show in which the host doesn’t know who will be seated opposite him for a natter until they walk out on set has captivated the nation over the past four seasons.Guests ranging from A-list celebrities to people with interesting jobs, and even our very own President Michael D Higgins, have left us enraptured as they chat to Tommy on the RTÉ One show.The ease at which the comedian