It’s me again – sorry Biggles! I have gone right back to the beginning with your instructions and think I might as well give up and accept I am not going to get those missing channels. I have checked the aerial and it is pointing in the same direction as all our neighbours’ aerials ie towards the Isle of Wight, which is the Rowridge transmitter. I have tried automatic searches; default resets followed by automatic searches; default resets followed by manual searches; yet again your method of deleting all channels etc and still I get the same channels and none of those previously mentioned missing ones. I can only presume that as the signal strength on “25” is only 69% and quality varies from 0-50% and back again in seconds, then that must be the problem. All the others are 100% quality and at least 77% strength. I have tried tuning in to the Hannington transmitter which is the next supposed best on the digitaluk listings but that produced nothing either. So, that’s it ! I shall just have to watch/record anything on ITV3/5USA/5* etc on my Humax Freesat box in the kitchen! Thanks for all the time you’ve taken trying to help me but I’m going to retire gracefully from the scene.

Hi Biggles. Thanks again for the latest suggestion. I have now tried bypassing the aerial amplifier and it’s still a no-go unfortunately. I checked with digitaluk and the missing channels are all on the multiplex SDN apparently and that is definitely my 25. I have tried all the other SDN tuning channels mentioned on the site for the Meridian area but no luck. When I try to tune in 25 (or the other SDN ones) it always says “no channels found” so it looks like I’ll just have to put up with it.