Get on board Events Fundraising Events in Devon Paul Dunn's Christmas Lights Switch on & Hog Roast Tiverton Paul Dunn and his amazing Christmas lights display return for 2020! The Big Switch On is Saturday 23rd November at 7pm with the lights on nightly until the end of December. 22 Bonville Crescent Tiverton. Father Christmas, Hog Roast, Raffle. Donations to Devon Air Ambulance. Do you have an event in support of Devon Air Ambulance that you'd like help with? We'd love to hear from you!