Need Cosby Показать Season and episode name {or #] of Olivia episode.

Hello,
I want to make sure I buy the right Cosby DVD. There was an episode with Olivia sitting on the постель, кровати with with maybe Pam или Rudy[?]. They got into this little "Buddy" thing back and forth and it was one of the most precious scenes. It really showed little Raven's great Актёрское искусство talent. Any ideas of which season, episode [or number?].
Many thanks in advance,
Mike