The CW, FOX, ABC, CBS, NBC
"Nikita" is bowing out very quietly. "Hope" is fading at FOX. A beloved star's return hasn't gone all that well for NBC. It's that time of year again, where Zap2it tallies up the list of each network's least-watched shows. / As with our past least-watched lists, the 2013 rankings include the five least-watched series at each of the five English-language broadcast networks. So while "Undercover Boss" is doing just fine in the overall rankings, it's still among the Bottom 5 at CBS. / The fine print: For the purpose of this list, Zap2it considered only regularly scheduled airings of 96 first-run shows on ABC, CBS, The CW, FOX and NBC from the start of the broadcast season in late September. Off-night repeats, Saturday-night rerun blocks and football pre-kick and post-game shows were removed. The five least-watched series (through Dec. 15; all ratings numbers are "most current" figures from Nielsen) on each network follow, ranked from smallest number of total viewers to largest.