help needed scanning in channels for n ireland

hi, got a alien triple tuner of ebay second hand. when i do a full scan it wont pick up bbc1 bbc2 utv etc (n ireland region ) . it will pick up bbc scotland, london etc with no problems . when i downloaded the bouqets for n ireland , the listings are correct tho, the first 3 are blacked out along with itv 2 , 3 etc an say can tuner failed when i click on them . any ideas as i have tried everything ...

thanks in advance

kabanna

edit : its all freeview channels !!!

thanks for the fast reply , but if the full scan is not picking up to begin with will bouquets work ? oscam working of just freeview

im using vivx4 blue that i cloned off other alien 3 box down stairs. it works fine, sly is working fine just freeview channels that are not working ??