The 2015 Christmas special, series 8, the 2017 special, series 9 and the live episode of not going out have not been released on DVD and are not available on any online video service for legal viewing. They are not on amazon prime, Netflix or Google play although they are on youtube they are not official videos and some people like to have an official version. One of the reasons the show came back after cancellation was due to strong dvd sales so why have the latest episodes not been released. The series is broadcast in hd so why not release them on Blu-ray as well.