HSP Series 1 "I'll show you when you fold"

[oddsock]

Hi all,
Being from the UK we only have series 1 of HSP so far and have to say it's the best poker on TV over here IMO.

I have a question about the JJ/KT (QTx flop) between Antonio E. and Daniel N. - when Antonio reads Daniel correctly but then gets rivered. In what way did Daniel give away his hand with his "I'll show you when you fold" line?

Thanks.