Election Special: Everything you didn't realise you wanted to know about the next Senedd election

Vaughan Roderick and his guests, former BBC political editor Betsan Powys and current political correspondents Elliw Gwawr and Cemlyn Davies look ahead at the next Senedd election in May. With 10 months to go they look at the changes to the electoral system, the runners and riders, polling and the issues at stake - answering all the questions you didn't know you wanted answering.