No one does biography better than American Masters. And the long-running PBS series outdoes even itself tonight with Good Ol' Charles Schulz, a clear-eyed look at the creator of the Peanuts comic strip.

If American Masters has a flaw, it is the tendency to confuse biography with appreciation - and consistently ignore the shadows in celebrated lives. Leonard Bernstein: Reaching for the Note is one of the most powerful TV biographies ever made, but it soft-pedals the acclaimed conductor's drug use and marital infidelity.

On TV Good Ol' Charles Schulz airs at 9 tonight on MPT (Channels 22 and 67).