Complex sentence: For the fourth series of Dragons'Den, a live, interactive "Sixth Dragon Game" was developed to be played whilst watching the show, in which viewers are able to decide in real time if they're IN or OUT as the pitches unfold.
Split into simpler sentences: For the fourth series of Dragons'Den, a live, interactive "Sixth Dragon Game" was developed to be played whilst watching the show. Where viewers are able to decide in real time if they're IN or OUT as the pitches unfold.