E.G. Marshall was the host, and print ads for it featured a black cat in the logo (with its long tail forming the "S" of "MyStery").
(E.G. Marshall; was; the host) (print ads for it; featured; a black cat in the logo) (its long tail; forming; the "S" of "MyStery)
E.G. Marshall print ads for it its long tail
was featured forming
the host
a black cat in the logo
the "S" of "MyStery