On the other end of the spectrum, What's My Line? taped its final shows that December, and despite being a big, award-winning show in the 1950s and having numerous reruns since then, starting with a select few episodes from The Golden Age of Television in the 1980s on PBS, followed by most of its run on GSN, save for the Wally Bruner era, hasn't been revived despite a couple pilots being produced. Three On A Match also left the air that year as well, which sadly was a fun show that's been mostly forgotten due to tape wipeage.
IMO the syndie runs of The $25,000 Pyramid and Jeopardy! ('74) are possibly still intact, especially the former, given that the former was well-known to be rerun during the '80s, causing the CBS version of that show to be renamed "The New $25,000 Pyramid" for the first 2 1/2 years of its run. A studio master copy of the second episode of the original $25K Pyramid is known to circulate.