PBS is not included; member stations have local flexibility over most of their schedules and broadcast times for network shows may vary.
Each of the 30 highest-rated shows released in May 1997 is listed with its rank and rating as determined by Nielsen Media Research.
Other Legend Note: On CBS, the debut of Ink was delayed by a month due to production problems, resulting in another new sitcom, Pearl, which aired temporarily in its slot before moving to its own originally designated Wednesday time period in late October.
Note: CBS picked up JAG after NBC cancelled it due to low ratings and it became a success afterwards.
Lawless which aired on March 27, 1997, replacing the second half of America's Most Wanted was canceled after one episode.