ABC, CBS Tell Shows' Stars: Don't Go On Leno

Despite a new prime-time perch and a larger audience, NBC comedian Jay Leno is fishing for guests from a substantially smaller pool of talent.

Rival networks ABC and CBS are discouraging their stars from appearing on the prime-time talk show. They are determined not to let Leno's 10 p.m. program undercut viewership of their costly dramas when they are trying to build audiences at the start of the TV season.