“Will & Grace” was steady in its fourth week, ranking as the top-rated and most-watched scripted show of Thursday night according to Nielsen overnight data. Airing at 9 p.m. on NBC, “Will & Grace” averaged a 1.7 rating in adults 18-49 and 6.5 million total viewers, down only slightly from its airing last week (1.8, 6.7 […]