Showcases a series of many mystery shows shown on a rotating basis in the same time slot on Sunday nights. It featured, Columbo (1971), McMillan & Wife (1971) and McCloud (1970).Showcases a series of many mystery shows shown on a rotating basis in the same time slot on Sunday nights. It featured, Columbo (1971), McMillan & Wife (1971) and McCloud (1970).Showcases a series of many mystery shows shown on a rotating basis in the same time slot on Sunday nights. It featured, Columbo (1971), McMillan & Wife (1971) and McCloud (1970).