Radio Times are celebrating the best of TV, radio and books with a host of stars and TV insiders appearing on The Green at Hampton Court Palace for the Radio Times Festival. Every ticket includes access to gourmet food stalls, a shopping village, free events and screenings. Bestselling author and Prime Suspect creator Lynda La Plante discusses her latest novel, Tennison, with broadcaster and fan Penny Smith. Delving deep into the past life of DCI Jane Tennison, she will give us the emotional back story of one of Britain’s most famous female cops. With production on the new TV series of Tennison underway, she will also share exclusive insights into the new series, which is set to transmit in 2016. Under 5 years go free, but must be seated on parents lap. Over 16s must purchase an adult ticket.