Complex sentence: When Dandy Nichols died in 1986, the character of Else was killed off and even though Alf treated his wife appallingly, the viewers could see that he genuinely missed her.
Split into simpler sentences: When Dandy Nichols died in 1986, the character of Else was killed off. Alf always treated his wife appallingly but after she died the viewers could see that he geniunely missed her.