UPDATE: In “fast official” results from Nielsen, night two of “The Tonight Show Starring Jimmy Fallon” averaged a 2.3 rating in adults 18-49 and 7.37 million viewers overall in its special midnight-1 a.m. timeslot.

The 7.37 million, a decline of about 35% from Night 1, is about 85% more than the average Tuesday audience this season for “Tonight” (4.01 million) and the largest on a Tuesday for the program since December 2000.

-

NBC’s “The Tonight Show Starring Jimmy Fallon” had another easy time of it in the ratings race Tuesday, beating the combined tallies of its ABC and CBS competitors and retaining three-fourths of its premiere audience, according to preliminary figures.

Fallon retained 75% of his show’s premiere-night rating (5.3 vs. 7.1), a little better than the 70% hold that Conan O’Brien saw when he took over for Jay Leno in 2009 (5.0 vs. 7.1).