I have a Humax box (DTRT1000) running YouView version 27.50.0. I get 162 channels, including all the channels on the com7 and com8 HD multiplexes, but none of the HD channels on the BBC b HD multiplex. I am on the Mendip transmitter, which should have all 3 multiplexes, according to Digitaluk.co.uk. This hasn't suddenly happened - it has always been the case. I have no reception problems with the other channels - signal strength is good. Could this be a Humax hardware / YouView software problem? Any advice would be gratefully received!