hi since freeview started I have had satellite as thats what freeview started. 3 years ado dish and lnb was replaced as rusted. now my signal is way down to 50% and quality 50%. this will suddenly drop to 0 then back.  I am assuming lnb but havent found where to buy one in Tauranga.  My terrestrial was no good as council trees blocked us. Council just cut them down and now perfect reception.

have 2 tv connected to terrestrial 

have 2 recorders connected to satellite.

years ago aerial lead replaced and splitter fitted in ceiling. rg59 cable.  I cant crawl in ceiling so either repair satellite or connect satellite cable to terrestrial aerial on roof and use adapters for terrestrial tuner.

Now that ShineTV also on terrestrial, I dont really need satellite.  but main thing does it sound like lnb has failed.