Credit: CBS

CBS dispatched its reality thug Undercover Boss to Fridays to show rivals who is, er, boss.

Moving over from Sunday nights, Boss (10.7 million viewers, 2.4 adults 18-49 rating) was easily Friday’s top-rated broadcast show, putting a beat down on ABC’s recently improving Shark Tank (5.7 million, 1.5), which fell 17 percent from last week’s season high. On its other flank, Boss also crushed Fox’s Kitchen Nightmares (3.1 million, 1.3).

The 8 p.m. Boss gave a lead in to CBS’ struggling freshman drama A Gifted Man (9.5 million, 1.5), now moved to 9 p.m. and tying CSI: NY‘s average in the spot. Though Gifted was 25 percent higher than the show’s average, the medical drama is considered a long-shot to to earn a second season.

ABC managed to edge out CBS to win the night, however, thanks to 20/20 devoting two hours to Whitney Houston (7.9 million, 2.0). Also Friday: Fox’s Fringe (3 million, 1.1) was unchanged in the demo. CBS’ Blue Bloods (10.6 million, 1.6) was OK. Ratings for The CW’s Nikta (1.6 million, 0.6) and Supernatural (1.7 million, 0.7) were pretty standard.