Quincy M.E. - looking for one certain episode

[funnyman]

Before I ask about trading, I need to find out if the episode I'm looking
for is even out there at all.

- Quincy M.E. was a tv show from the 70's, on for 7 or 8 seasons.

I've looked on the web at some episode kind of guides but from what I've read
it didn't tell me whichh of the episodes is the one I'm trying to find the name of and the one I want to get.

Details: All I remember of the episode is - probably at the end of it,

Quincy is talking to a young woman or teen ager, who is commenting about bein surprised that either

1. a certain baby is black (the young woman is white).

I don't know if its about her baby or about someone else's where there was a white mother

OR

2. its about someone in the past who had this situation (a white mother and I am assuming a black father) -- but I just can't remember the details here.

However, what I do remember is that Quincy said to her "Black is Beautiful".

---> That's the episode that am trying to find out the title of and thus see if its even out there related to trading for it.

I think commercially only 3 seasons have been released but from my limited
knowledge of the espisode, nothing mentioned in episode guides give me any clue of which one it is.

Thanks for any help or suggestions