my 26" Bush tv/dvd combi model LED24970DVDFHD has been unused while we decorated and now when I tried to reconnect to virgin box it wont install any channels there is just a black screen and a message in centre screen stating No channels found please check your antenna connection. I have done this several times with no result. I have completed all the options analogue, digital and full on the automatic re tune and also tried the new install option.