Simplify the following text for a Grade 5 native English-speaking person.
Original: The first Survivor Series event occurred on November 29 , 1987 , scheduled to conflict with NWA 's Starrcade .
Simplified: The first Survivor Series event took place on November 29 1987 . It was shown at the same time as NWA 's Starrcade which was thought to be the biggest yearly event for NWA .