Ratings and Cancellation
The series did not rate in the Top 30 shows in any of its six seasons, but it did have a relatively solid ratings base, and often won its time slot.
Its first season (1985) was exempt from the Nielsen ratings as it aired too few episodes before the end of April to be counted.
In its second season (1985–86), the show ranked #45 with a 14.8 rating.
In season three (1986–87), the show fell to #51 with a 13.7 rating. At the end of the 1986-87 season, ABC decided to cancel the show, but brought it back in October 1987.
In season four (1987–88), the show fell to #64 and an 11.5 rating for the year.
In season five (1988–89), the show rose to a 12.2 rating and #47 for the season.
However, in the sixth and final season (1989–90), the show was moved to 8:00 p.m. on Saturday nights, which led to a steep ratings decline from its old Friday night slot. Mr. Belvedere fell to a 6.3 rating. In its final airing before being shelved (December 30, 1989), the series ranked #70 out of 83 shows. The two-part finale, which aired on July 1 and July 8, 1990, ranked #59 and #37, respectively, out of the 86 shows airing those weeks.
Read more about this topic: Mr. Belvedere