Episode 15 of "Will and Grace"
s01e15 Big Brother is Coming - Part 2
Title: Big Brother is Coming - Part 2
Original Air Date: 02/23/1999 on NBC
Plot Outline:
A wary Grace tells Will of her romance with his brother, Sam, and unleashes an avalanche of resentment. While Will wrestles with sibling rivalry, Karen helps Jack come to grips with turning 30 by hiring him as her personal assistant and leads Grace to sort through her true feelings for the Trumans.