the thor6 k1 beam shows 44dbw for northern ireland so you should be ok with a good quality 1.2m dish correctly aligned... tv2 bliss is on a different beam of thor5,regards mdt
85% here only about 20 miles from Derry on south side of the border using 88cm Triax Dish and tm2600 motor on TV2PL HD
10747 H 25000sr Fec 3/4 dvb s2 8psk
Should certainly not be having issues with this freq if your dish is aligned properly .