While NBC proceeds to set up its late-night changes for next year, "The Tonight Show with Jay Leno" continues to grab steady top results -- just ahead of the competition.Season-to-date numbers through May 3 have the one-hour "Tonight" show at 11:35 p.m. sitting at a Nielsen 0.8 rating/3 share among 18-49 viewers. CBS' "Late Show with David Letterman" and ABC's "Jimmy Kimmel Live" are at an identical 0.7/3. "Kimmel" started up in the earlier 11:35 p.m. slot this past January.Looking at overall viewers, "Tonight" show continues to have a better advantage -- 3.5 million viewers. "Late Show" is at 3.0 million, and "Kimmel" is at 2.6 million.NBC's "Late Night with Jimmy Fallon" -- Fallon will take over "Tonight" next year -- still maintains a lead over CBS' "Late Late Show with Craig Ferguson." Fallon is at 0.5/3 in 18-49 and 1.7 million viewers; Ferguson is at a 0.4/2 in 18-49 and 1.5 million viewers. Both shows air at 12:35 p.m.ABC's "Nightline" -- also at 12:35 p.m. -- continues to be in the mix with a 0.4/2 among 18-49 viewers and 1.6 million viewers.Late-night cable fare continues to be consistent: Comedy Central's two late-night entertainment shows "The Daily Show" has a 0.7 18-49 rating and 1.5 million total viewers; "The Colbert Report" is at 0.6 rating among 18-49ers and 1.3 million.TBS' "Conan" is at 0.4 rating among 18-49 viewers and 800,000 for the season so far. Turner's other late-night fare, "Adult Swim", is at a 0.9 18-49 rating for its first hour, starting at 11:35 p.m. and 1.8 million viewers. For its second hour at 12:35 p.m., it is at a 0.6 rating in the key demo and 1.3 million viewers.