i wanted to watch freeview and freeview HD on my desktop pc  so i purchased a Kworld PCIEx1 Dual DVB-T TV Card DVB-PE355-2T 

installed drivers loaded up windows media center. it did its thing setting everything up found 110 channels but to my surprise no HD channels :( part from that everything is perfect (picture quality/sound) 

so i asked google if my card really can receive HD channels and i get two answers yes it can (on manufacturers page) and a no on couple forums

so can anyone give me a 100% yes or no answer please? 

my setup is as follows

loft Arial to booster to pc

pc spec fx4100 quad core 4:10GHZ 8gb ram ati 6670 64bit windows7 

i get a full signal strength on every channel i receive so surly i should be able to pick up hd channels if my card can receive them? 
i am considering in moving the areal outside as i no this is better.iv even purchaed a 
LABGEAR F4GC 4G LTE AT800 IN LINE FILTER (not yet added to my setup) as iv seen some good reviews on them that they help further improve picture quality 

hope someone can help i apologist i dont no much about freeview tech. im more into computers. just thought its better to ask people that know what there talking about . cheers :)