*The Monday night premiere of “Conan” starring, of course Conan O’Brien, on TBS drew 4.2 million viewers, with a whopping 3.3 million of them in the coveted 18-49 demographic.

By contrast, 3.5 million viewers tuned into Jay Leno’s “Tonight Show,” with 950,000 in the 18-49 demo, and David Letterman’s “Late Show” drew 3.4 million viewers, with 1.4 million in the demo.

Look for the ratings for “Conan” to likely drop in the coming weeks, but he and TBS have something they definitely build on.