 All That Glitters , after initially capturing 20 % of viewers in major markets in its opening weeks , had lost about half of that audience mid @-@ way through its run . The series was cancelled after 13 weeks , last airing on July 15 , 1977 . Although the show was panned , it and Lear , along with Mary Hartman , Mary Hartman , are credited with expanding the subject matter that television producers were able to explore with lessened fear of antagonizing sponsors or viewers . 
