Part 2 of CBS’ “Return to Lonesome Dove” didn’t fly as high as its opener against ABC’s lineup, but it still delivered the Eye network’s best Tuesday results since February.Jumping a whopping six share points nationally above its metered-market average, “Dove” rode off with a 16.5 rating, 25 share, down 9% from its premiere rating Sunday. Coupled with the season’s highest-rated “Rescue 911″ (15.0/23), CBS averaged a 16.0/25 for the night — last topped when the web aired the sweeps miniseries, “Queen.” Still, “Dove” couldn’t unseat ABC’s regular-schedule posse, which rounded up a 16.6/26, including the highest rating ever for “Coach” (20.1/30) and second-best performance this season by “Roseanne” (21.8/32). “NYPD Blue” (14.0/ 23) ranked first in the overnights but fell to its worst national numbers yet, running second to “Dove” at 10 p.m. Nevertheless, CBS’ seven-hour sequel will clearly be a tamer ride than the original, which galloped to a 23.8 rating for its second installment in 1989. NBC’s two-hour “Seventies Celebration” special danced off with a pretty groovy 9.4/14, better than five of the six outings this season of the web’s sitcom block. All three networks remain up 4% or more compared to this point in last year’s November Nielsen survey.