In reading over the list, I'm surprised at how many pilots some of these shows actually did. Until the 'net came along, I always thought they did just one pilot for each show.
That belief was made stronger by a 1979 TVGuide article that discussed upcoming pilots of the big game show companies. In describing All-Star Secrets, which was on the air by that point, it stated
"...NBC demanded two pilots for their new show instead of one, industry sources say the new producers received only a six-week contract rather than the usual 13-week deal..."
It's interesting that they tried to bring this show back again in the late '80s. I always thought it wasn't a bad little show.
Carry on...