Sebastian Bach: Alexander Sibaja/Getty Images
Sebastian Bach
SHOW ''Gilmore Girls'' (The WB, Tuesdays at 8 p.m.)
WHEN Nov. 4
AS Gil, a musician Lane Kim (Keiko Agena) discovers while looking to replace her band's guitarist. Lane's thrilled when she hears Gil's killer demo tape, but freaked out to learn he's an ''old'' guy in his 30s.
WHY WE CARE Seeing Skid Row's golden god of early-'90s hair metal cast as a talented geezer makes us want to hide in a corner and check for liver spots, but we're dying to hear him rock out old-school again.
