TONIGHT'S MUST SEES

�MELROSE PLACE,� 8 P.M., CW

Last week's opener delivered glitz and heat. It also left lots of questions � mostly about who killed Sydney the landlady and dumped her in the swimming pool.
So far, we only know that she had sex that night with David � just as she did in the old �Melrose Place� series with his dad, Michael Mancini. Tonight, fresh information appears.
We learn of her love-hate relationship with Augie. And of her possible link � real? bogus? � Violet.
Some characters leap to attention. Ella (superbly played by Katie Cassidy, David's daughter) is a publicist with high intellect and low ethics; Violet (pop star Ashlee Simpson-Wentz) brings deceptive layers under that na�ve surface.
It all nears overkill. Fortunately, two people (Jonah and Riley) provide a smidgen of sweetness.

�WAREHOUSE 13,� 6 AND 8 P.M., SYFY

Leading into next week's season-finale, this fun show gets personal. It starts with Pete chasing the evil MacPherson (Roger Rees); soon, Myka's father (Michael Hogan of �Battlestar Galactica�) is a target.
He's a bookseller and key artifacts are linked to Edgar Allan Poe; tonight, be wary of pendulums and bricked-in walls. It's an hour filled with imaginative twists and � since Myka's parents have no idea what she does for a living � neat dabs of humor.

For more of today's best bets on the small screen, check out the blog and column at MikeHughes.tv.