Trying to find some obscure Star Trek information.

When my younger sibling was born my other siblings and I were watching a Star Trek TNG rerun on TV. These days my younger sibling is a HUGE Star Trek fan. I thought it would be so fun to find out which episode was playing when they were born, this was September 19th 2002 at 8PM. I found a TV guide on ebay that included that date, but it only said that Star Trek was playing not which episode. Does any one have any other ideas of how I could figure out this information?