Update: Full English transcript available here. Lengthy (thank you Joana Morais) but most readable.
Any inference I make below is purely academic, for a body in a coffin theory plays havoc with later revelations, DNA and cadaver odour in the McCann's hire car etc.
Short transcript from CM Special: "Maddie, the Mystery"
Anchor João Ferreira - I would like for you to tell us in detail your explanation for the disappearance of the body, you have a thesis..
Gonçalo Amaral - No, I don't have one.
Anchor - ... in this book...
Gonçalo Amaral - No, in that book there isn't anything concerning what we just saw me saying on the news piece that was shown. Because these are elements, these are information that appeared afterwards and were never investigated. It's just an hypothesis, and when considering that hypothesis...
Anchor - An hypothesis that Madeleine's body could have been hidden, could have been incinerated, right?
Gonçalo Amaral - There's an information here, in the police, that mentions that. That in a night, three figures were seen carrying a bag, entering the church...
Anchor - In the Praia da Luz church.
Gonçalo Amaral - In that church was a coffin of a woman, a woman from the United Kingdom...
Anchor - Of a British woman.
Gonçalo Amaral - ... and in the following day that coffin was transferred to Ferreira do Alentejo to be incinerated. But no one is saying that the parents did that, or saying who did that. It's something that someone who is on the field investigating has to ascertain, must investigate thoroughly.
Anchor - But you concede that hypothesis, that possibility of Madeleine's cadaver being taken to the church, and then incinerated is a plausible hypothesis...
Gonçalo Amaral - We're practically starting by the end, first is the disappearance, if you allow me to explain, to explain to the viewers... [overlapping speech]
Anchor - I'll allow you, but just so not to lose this train of thought, is this hypothesis plausible for you?
Gonçalo Amaral - It is plausible, and I say plausible in this sense, that that body would fit underneath the cadaver that was already there.
Anchor - And it would fit?
Gonçalo Amaral - It would, yes. At the time, when I was already out of the Judiciary Police I obtained the opinion of people that dealt with that, of funeral agencies, and they said that it was a possibility. It's an opinion that is not officialized but it's a possibility. If it happened like that or not, we don't know, there are several hypotheses to make a body disappear. Joana Morais