Complex sentence: First broadcast in 1972 as part of the "Words and Pictures" strand, it was one of the first television appearances of Tony Robinson as Sam, who is magically transported to Boff's Island when he is eating his breakfast cereal in the morning.
Split into simpler sentences: First broadcast in 1972 as part of the "Words and Pictures" strand, it was one of the first television appearances of Tony Robinson. Robinson played the character Sam, who is magically transported to Boff's Island when he is eating his breakfast cereal in the morning.