For its sixth and final season (1989–90), "Mr. Belvedere" left its longtime Friday night slot (which began its evolution into the long-running TGIF block that season) and was moved to 8:00 p.m. Eastern Time on Saturday nights. The move led "Mr. Belvedere" to suffer a steep ratings decline, falling to a 6.3 rating. The final episode to air before it was put on hiatus on December 30, 1989 ranked #70 out of 83 shows. ABC canceled the series for good in February 1990. The two-part finale, which aired on July 1 and July 8, 1990, ranked #59 and #37, respectively, out of the 86 shows that aired during those weeks.