Still On Mytv

Bigjoe,
Bigjoe.
I cannot thank you enough. Are there not other sattelite that MYTV can pick. Sometime ago i was able to pick BENTV london with it but i lost it due to my inquisitiveness i wanted to edit some duplicated channels  but unfortunately i wrongly deleted it, ever since i have been trying to pick  it without much success. Also somebody said with my present Dish, Decoder i can buy HITV card that it will work perfectly how far is that correct?. Also i do use Yaggi Some time ago i don't know the correct name it is form of Antenna that is directed toward Agidingbi and then we do pick station like Yotomi, Eurosport, Discovery,CNN, and some other local cable station but it is not picking any station again. Somebody also said that they have encrypt all the station  on a card that the card is sold for Two thousand naira and that their will be monthly subscription. iwanted to find out how far this is true?.
Please don't mind my so many question i am asking from point of ignorance