Complex sentence: Nick Tilsley is the first-born child and only son of Brian Tilsley (Chris Quinten) and Gail Platt (Helen Worth), born on New Year's Eve 1980 and known as "Nicky".
Split into simpler sentences: Nick Tilsley is the first-born child and only son of Brian Tilsley (Chris Quinten) and Gail Platt (Helen Worth). He is born on New Year's Eve 1980, and is known as "Nicky".