Undercover Boss averaged 38.6 million viewers and was the most-watched post Super Bowl show since 2001 (Survivor II) eclipsing Grey's Anatomy in 2006.
Here are the past years for comparison:
| Super Bowl | Year | Network | Program | Rating | Share | Avg. Homes (million) | Avg. Viewers (million) |
| XLIII | 2009 | NBC | The Office | 11.6 | 21 | 13.338 | 22.905 |
| XLII | 2008 | FOX | House | 15.7 | 27 | 17.719 | 29.045 |
| XLI | 2007 | CBS | Criminal Minds | 15.1 | 26 | 16.770 | 26.314 |
| XL | 2006 | ABC | Grey's Anatomy | 21.0 | 34 | 23.106 | 37.881 |
| XXXIX | 2005 | FOX | Simpsons | 13.0 | 22 | 14.228 | 23.074 |
| XXXVIII | 2004 | CBS | Survivor All-Star | 17.9 | 32 | 19.415 | 33.535 |
| XXXVII | 2003 | ABC | Alias | 10.6 | 20 | 11.283 | 17.362 |
| XXXVI | 2002 | FOX | Malcolm In The Middle | 11.5 | 21 | 12.117 | 21.445 |
| XXXV | 2001 | CBS | Survivor II | 24.5 | 39 | 25.076 | 45.369 |
| XXXIV | 2000 | ABC | The Practice | 15.3 | 27 | 15.420 | 23.847 |
| XXXIII | 1999 | FOX | Family Guy -Preview | 12.6 | 21 | 12.560 | 22.005 |
| XXXII | 1998 | NBC | Third Rock from the Sun | 19.7 | 34 | 19.260 | 33.662 |
| XXXI | 1997 | FOX | X-Files | 17.2 | 29 | 16.730 | 29.098 |
| XXX | 1996 | NBC | Friends | 29.6 | 46 | 28.400 | 52.925 |
| XXIX | 1995 | ABC | Extreme Special | 14.2 | 25 | 13.350 | 22.594 |
| XXVIII | 1994 | NBC | John Laroquette Show | 12.3 | 22 | 11.590 | 17.708 |
| XXVII | 1993 | NBC | Homicide Special | 18.0 | 31 | 16.760 | 28.121 |
| XXVI | 1992 | CBS | 60 Minutes | 16.8 | 30 | 15.470 | 24.821 |
| XXV | 1991 | ABC | Davis Rules | 15.5 | 25 | 14.430 | 26.695 |
| XXIV | 1990 | CBS | Grand Slam | 18.6 | 30 | 17.130 | 30.765 |
| XXIII | 1989 | NBC | Sun Nite Movie | 20.9 | 36 | 18.890 | |
| XXII | 1988 | ABC | Wonder Years | 17.9 | 31 | 15.860 | 28.976 |
| XXI | 1987 | CBS | Hard Copy Special | 19.8 | 33 | 17.310 | |
| XX | 1986 | NBC | NBC Sunday Night Movie | 16.5 | 25 | 14.170 | 39.729 |
| XIX | 1985 | ABC | Macgrouder and Loud | 22.8 | 38 | 19.360 | |
| XVIII | 1984 | CBS | Airwolf Special(s) | 21.6 | 36 | 18.100 | 27.874 |
| XVII | 1983 | NBC | A-Team Special | 26.3 | 39 | 21.910 | 21.910 |
| XVI | 1982 | CBS | 60 Minutes | 26.2 | 36 | 21.350 | |
| XV | 1981 | NBC | Chips | 16.3 | 26 | 12.680 | |
| XIV | 1980 | CBS | 60 Minutes | 33.0 | 50 | 25.179 | 40.746 |
| XIII | 1979 | NBC | Brothers and Sisters | 21.0 | 32 | 15.650 | 31.722 |
| XII | 1978 | CBS | All In the Family | 30.4 | 47 | 22.160 | 35.472 |
| XI | 1977 | NBC | Disney's "Kit Carson | 25.8 | 37 | 18.370 | 42.816 |
| X | 1976 | CBS | Phoenix Open Golf | 16.5 | 31 | 11.480 | 22.363 |
| IX | 1975 | NBC | NBC Sunday Night News | 16.7 | 28 | 11.440 | 15.924 |
| VIII | 1974 | CBS | Perry Mason** | 12.7 | 20 | 8.410 | 15.058 |
| VII | 1973 | NBC | Disney's "The Mystery | 28.4 | 44 | 18.400 | |
| VI | 1972 | CBS | 60 Minutes | 20.3 | 36 | 12.610 | |
| V | 1971 | NBC | Bing CrosbyPro-Am Golf Champshps | 19.2 | 36 | 11.540 | |
| IV | 1970 | CBS | Lassie | 21.5 | 34 | 12.580 | |
| III | 1969 | NBC | G.E. College Bowl | 11.7 | 21 | 6.670 | |
| II | 1968 | CBS | Lassie | 26.3 | 41.2 | 14.730 | |
| I | 1967 | CBS | Lassie | 15.6 | 25.3 | 8.560 | |
| I | 1967 | NBC | Disney's "The Mosby Raiders" Part II | 21.7 | 33.7 | 11.910 |
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2006-9 numbers are Live+Same Day, all others are Live Viewing.
Nielsen TV Ratings: ©2010 The Nielsen Company. All Rights Reserved.
