The one I hate the most was the TOS episode with Space Hippies.
Not one of my favorites, but there are some funny parts (e.g. some of the lingo from the space hippies). And there is a hottie in the background I find interesting, one of the Enterprise crew in red, during the 'jam' session...
(Remember, this was the 80s and the only interracial relationships that were 'okay' were the white male/Asian female - ex: Keiko and Miles, Nurse Ogawa and the unnamed white officer - and that's still the case in some respects today in non-Trek shows).
The Jeffersons.
Very true.
But it was always the butt of jokes, it wasn't shown as a normal thing. Even as an addition to the show it was the exception rather than the norm.
Another example is
Sanford and Son: Pat Morita was shown with a Caucasian wife with no mention of the different racial backgrounds, yet in the same episode (or another) it was a big issue when Lamont was seeing a Latina whom he was 'just friends' with. (Note: Lamont never, ever had a relationship with a non-black woman on the show).
Even the FOX show
True Colors in the 90s had a black male/white female couple who never showed any affections onscreen. A reason, I believe, the initial actor who played the husband left the show.
Usually, if there was a relationship on television that involved a black man opposite a non-black woman (usually white), it was a discussion about race. Not just having the relationship be something 'normal.'
Now, we have Jessica Jones with a black boyfriend...and Supergirl has the hots for a black guy. Not too mention, today we have some sexy black women taking charge in shows like
Minority Report (which was cancelled) and
Sleepy Hollow...and
Ash Vs. Evil Dead (even though Amanda Fisher died). On the other hand, there is
How to Get Away w/Murder and
Scandal, both which have black female leads and are in mixed-race relationships.
Taye Diggs was opposite a Eurasian/Hapa girl in
Day Break, but that was cancelled. (Sidenote: I met John Rubenstein back in 2012 when he was at a Summer Orientation at UC Santa Cruz - a relative was probably going to attend - and asked him about this show).