Ralph and Alice Kramden.
Wilma and Betty.
What?
Bruce Willis and Cybil Sheppard
Don Adams and Barbara Feldon
That’s who I was coming in to nominate.
And I have to believe Bob Hartley must have had some major mojo going on to keep a firecracker like Emily happy!
Agreed. You could tell they were a real-life couple.
Hal and Lois
Blanche and any number of her gentleman callers.
John and Olivia Walton made no secret that they had a passionate marriage.
Willow and Tara
And lucky woman!
How about Howard and Bernadette?
JD and Eliot.
I don’t konw why, but I immediately thought of something from the 90s TV Show Flying Blind:
Summarized from Wikipedia: The series revolves around Neil Barash (Corey Parker) who meets beautiful libertine Alicia (Leoni) and begins a relationship with her. The show explores the difficulties faced by self-conscious and repressed Neil in dealing with the erotic antics of Alicia and her eccentric roommates.So, yes, I nominate a hot Téa Leoni from the 90s. Oh yea, and that other dude. 
Which makes you wonder when you realize the walls were so thin that the whole family could easily say goodnight to each other from all the bedrooms in the house.
You could, hey? I don’t think William Holden would have put up with that.
Anyway:
Steven and Elyse Keaton.
John Steed & Emma Peel
Sheldon Cooper and Amy Farrah Fowler. Just look at the first time they had coitus. Never has mussed up hair indicated so much.
Hart to Hart played from 1979 to 1984 and William Holden died in 1981. Given his extreme alcoholism, he probably didn’t notice much of anything.
Natalie Wood died in 1979 and William Holden died in 1981, neither due to natural causes. Shortly thereafter, Robert Wagner and Stefanie Powers played detectives solving murders. Interesting, no?
Brian and Justin from Queer as Folk.
I guess I’m just thinking differently here but my first thought was Ron and Tammy (2) Swanson.
But you’ll notice she never set her glass down unattended.
Magnum was all nuts over his AWOL ‘wife’ Michelle.
Always hated that story-line.