Basically, this was done (http://tvtropes.org/pmwiki/pmwiki.php/Main/SyndicationTitle) to avoid confusion with a series that was still producing first-run network episodes.

For example, syndicated reruns (http://www.sitcomsonline.com/boards/archive/index.php/t-345198.html) of Happy Days (http://zvbxrpl.blogspot.com/2008/04/s.html) were aired under the title Happy Days Again (https://www.radiodiscussions.com/showthread.php?567681-quot-Happy-Days-(Again)-quot-quot-Laverne-amp-Shirley-(-amp-Company)-quot):
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In the early 80s. The last two I remember were “Laverne & Shirley & Company” and “CHiPs Patrol”. After that, TV execs realized that even us morons could figure out the difference between a new episode and a rerun.

In the early 80s. The last two I remember were “Laverne & Shirley & Company” and “CHiPs Patrol”. After that, TV execs realized that even us morons could figure out the difference between a new episode and a rerun.very well said

It's a quirky little trend that I wouldn't mind seeing come back. Imagine watching Bazinga instead of The Big Bang Theory :lol: ...but like TV Guy said, I think most people are wise enough to know that episodes airing during the daytime are reruns.

Besides, with so many channels airing four-hour marathons (if not more) on a daily basis, you'd have to live under a rock to not catch that.

but how come some shows didn't do that? For instance I remember" MASH
" was being rerun in syndication with the same title while CBS was still showing original episodes in prime time. And I think they were doing that with "THE MARY TYLER MOORE SHOW" too.