Complex sentence: In 1973, the "Superstars" was first televised as a segment on "Wide World of Sports"; the following year, the "Superstars" debuted as a weekly winter series that lasted for 10 years.
Split into simpler sentences: In 1973, the "Superstars" was first televised as a segment on "Wide World of Sports". The following year, the "Superstars" debuted as a weekly winter series that lasted for 10 years.