They must have a great warm up guy to get them to laugh for those groaners.
I don't know jacksht about anything. - kinch_telemachus

Either the audience is acting like trained seals and forcing laughter on cue or else a laugh track is being used because I just don't see what is always so funny about it.
People laughed because the phrases were either silly or had a double entendre. It was the 1970s. It didn't take much to amuse people.
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Sounds like mactach might be a writer for a sitcom and realizes his writing in utterly unfunny and must have a laughtrack to make it seem he is a funny and good writer.
Absolutely they used a laughtrack as do most shows out there. I don't have a problem with it unless it is egregious.

Shut up.

Laugh tracks were used even with studio audiences.

Perhaps I did and still think the question is silly.

Someone needs to learn to read all the posts before replying.

Dumb question.
All games shows have studio audiences.

Correct. If there isn't enough real laughter, the laugh track will be used to complement the proceedings. Some shows made throughout history, moreso in some eras than others, also used exclusively a laugh track as a live audience could be unpredictable with how they react to material. Or be inappropriate.

I agree. I also suspect a laugh track at certain points. (In addition to the live audience)

I think some shows have added in laughter with live audiences to fill in the blanks. (No pun intended. LOL)

They performed in front of an audience, so I can't feature why they'd use a laugh track just for that reason. But they did have signs to advise people when to laugh. And the suggestiveness did amuse people during that time period.