"How does it not infer that the purpose of sex is to conceive if the use of contraception is morally wrong?
I think that its pretty clear that the churches stance on this is that the purpose of sex is for procreation."
This argument lacks logic. The position of the Church is that the use of artificial contraception is morally wrong. This does not mean that the church's stance must therefore be interpreted as being that the purpose of sex is for procreation.
But. more to the point, what does all of this have to do with the relatively simple issue of whether the Angelus should be on TV?