Complex sentence: Woodrow Tiberius Boyd came to Cheers at the beginning of the fourth season of the TV show "Cheers", after the death of Ernie "Coach" Pantusso, his penpal.
Split into simpler sentences: Woodrow Tiberius Boyd came to Cheers at the beginning of the fourth season of the show. After the death of Ernie "Coach" Pantusso, his penpal.