CathInfo.com

Anything past about 1965 - 1968 in a couple of cases is bad.
The Following shows were all in the 1970's:

"All in the Family"
"The Odd Couple"
"Laverne and Shirley"
"Happy Days"
"Three's Company"

My mind's blank about the 1980's t.v. shows at the moment.  But there are tons and tons of bad movies from the late 1960's (sometimes a little earlier) all the way through the 80's and to the present day.

We just have to remember we didn't have the internet back then and our ability to communicate about such things was limited.

The corruption of the culture has been going on for a very long time.  I've been suprised by suggestive dialogue in films from the 30's and 40's.  Actresses and dancers were wearing immodest attire from the earliest days of film .. even after the Hayes Code was enacted.  

Women wearing short shorts and pants were around in the 20's and 30's in film.

It's amazing to me that that was only 20 and 30 years after women were wearing dresses that covered from neck to ankle.  

The descent has been rapid and relentless.

A very interesting topic. A very popular programme in Ireland was 'Dallas'.

Whilst not the 1980s, 'The Riordans' featured one character deciding to use contraception. 'The Riordans' was on Irish Television from 1965 to 1979.Before my time.

'Glenroe' , a TV drama from 1983-2001 featured one character leaving the priesthood and marrying. Whilst another character committed adultery with his wife's niece.The actor, who played 'Miley' was the late Mick Lally, who claimed to be an atheist.
http://en.wikipedia.org/wiki/Glenroe

Religion was featured in the programme on numerous occasions. When Miley, a devout Roman Catholic, believed his daughter, who had been critically ill with meningitis, was saved by prayer and divine intervention while Biddy, who rarely went to Mass credited their doctor with her recovery. The parish priest, Father Tim Devereaux, was upset that nobody was listening to his pastoral advice and retired to embark on a round-the-world cruise with Shirley Manning, a widow of Protestant and Jєωιѕн ancestry. One episode focused on how much money should be spent on a girl's First Communion dress.
In the fourteenth season, Tommy McArdle, the show's producer, introduced the travellers issue, frequently in the news at the time. The storyline involved Miley and Biddy trying to evict a family of travellers who parked their trailer on the edge of the farm. The episodes depicted the attitudes of some Irish people who believed that travellers were "stupid, dirty and dishonest". When two pet rabbits disappear the community suspects the travellers must have eaten them in a stew. Another storyline involved an extramarital affair between a traveller and an upper-middle-class local woman.[2]
The final episode of the penultimate series saw the death of main character Biddy in a road accident involving her car and a tractor. The final series dealt largely with husband Miley's coming to terms with the loss of his wife and the struggles he faced in raising their two surviving daughters.[3]

Not the 1980s but one programme that stands out is 'Walker,Texas Ranger'/Chuck Norris.

Two other programmes that featured in Ireland were
'Touched by an Angel' and '7th Heaven'